Applied Surface Science最新文献_第7页

Preparation of a superhydrophobic GO/ZIF-67/PDMS composite fabric with high photothermal antibacterial performance and durability 具有高光热抗菌性能和耐久性的超疏水GO/ZIF-67/PDMS复合织物的制备

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165862

Cong Liu , Tong Lu , Bo Cheng , Rong Chen , Yong Huang , Hao Yang

This study presents the development of a durable, superhydrophobic composite cotton fabric with enhanced photothermal antibacterial properties. Graphene oxide (GO) was first deposited onto cotton fabric to create an anchoring layer, followed by the in-situ growth of ZIF-67 nanoparticles. The fabric was further modified with polydimethylsiloxane (PDMS) to impart a low-surface-energy coating, enhancing both hydrophobicity and stability. GO not only significantly enhanced photothermal conversion efficiency, but also improved the dispersivity and adhesion of the nanoparticles. The resultant GO/ZIF-67/PDMS composite fabric exhibited excellent photothermal performance, reaching 103.2°C within one minute under near-infrared (NIR) irradiation (0.6 W/cm²). The antibacterial activity of the composite was evaluated against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. Under NIR irradiation for 5 min, the survival rates of E. coli and S. aureus were reduced to 0.01% and 9.35%, respectively. Moreover, the fabric maintained both photothermal and hydrophobic properties even after 10 washing cycles in sodium dodecyl sulfate (SDS) solution or 100 abrasion cycles, demonstrating outstanding durability. These results highlight the potential of GO/ZIF-67/PDMS composite fabric in antibacterial textile with self-cleaning property, particularly in the photothermal antibacterial application.

本研究提出了一种具有增强光热抗菌性能的耐用、超疏水复合棉织物的开发。首先将氧化石墨烯（GO）沉积在棉织物上形成锚定层，然后原位生长ZIF-67纳米颗粒。织物进一步用聚二甲基硅氧烷（PDMS）改性，以获得低表面能涂层，增强疏水性和稳定性。氧化石墨烯不仅显著提高了光热转换效率，而且改善了纳米颗粒的分散性和附着力。所得的GO/ZIF-67/PDMS复合织物具有优异的光热性能，在近红外（NIR）照射下，1分钟内达到103.2℃（0.6 W/cm2）。研究了该复合材料对革兰氏阳性金黄色葡萄球菌和革兰氏阴性大肠杆菌的抑菌活性。近红外照射5 min后，大肠杆菌和金黄色葡萄球菌的存活率分别降至0.01%和9.35%。此外，即使在十二烷基硫酸钠（SDS）溶液中洗涤10次或磨损100次后，织物仍保持光热和疏水性能，表现出出色的耐久性。这些结果突出了GO/ZIF-67/PDMS复合织物在具有自清洁性能的抗菌纺织品，特别是光热抗菌方面的应用潜力。

{"title":"Preparation of a superhydrophobic GO/ZIF-67/PDMS composite fabric with high photothermal antibacterial performance and durability","authors":"Cong Liu , Tong Lu , Bo Cheng , Rong Chen , Yong Huang , Hao Yang","doi":"10.1016/j.apsusc.2026.165862","DOIUrl":"10.1016/j.apsusc.2026.165862","url":null,"abstract":"<div><div>This study presents the development of a durable, superhydrophobic composite cotton fabric with enhanced photothermal antibacterial properties. Graphene oxide (GO) was first deposited onto cotton fabric to create an anchoring layer, followed by the in-situ growth of ZIF-67 nanoparticles. The fabric was further modified with polydimethylsiloxane (PDMS) to impart a low-surface-energy coating, enhancing both hydrophobicity and stability. GO not only significantly enhanced photothermal conversion efficiency, but also improved the dispersivity and adhesion of the nanoparticles. The resultant GO/ZIF-67/PDMS composite fabric exhibited excellent photothermal performance, reaching 103.2°C within one minute under near-infrared (NIR) irradiation (0.6 W/cm<sup>2</sup>). The antibacterial activity of the composite was evaluated against Gram-positive <em>Staphylococcus aureus</em> and Gram-negative <em>Escherichia coli</em>. Under NIR irradiation for 5 min, the survival rates of <em>E. coli</em> and <em>S. aureus</em> were reduced to 0.01% and 9.35%, respectively. Moreover, the fabric maintained both photothermal and hydrophobic properties even after 10 washing cycles in sodium dodecyl sulfate (SDS) solution or 100 abrasion cycles, demonstrating outstanding durability. These results highlight the potential of GO/ZIF-67/PDMS composite fabric in antibacterial textile with self-cleaning property, particularly in the photothermal antibacterial application.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"725 ","pages":"Article 165862"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scalable fabrication of vermiculite nanosheets for high-performance thermal insulation film via multi-hierarchical assembly with poly-m-phenyleneisophthalamide 聚-间苯苯酞酰胺多层组装制备高性能隔热膜用蛭石纳米片

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165873

Longhui Li , Haoqing Jiang , Guang Xiao , Wei Zhang , Wei Zou , Zhenhua Zhang , Shunxi Wen , Fanzhan Zeng , Hao Li , Jianfeng Wang

Vermiculite nanosheets show significant promise for advanced composite materials due to their exceptional thermal insulation, flame retardancy, thermal stability, and mechanical properties. However, existing exfoliation methods face challenges in achieving large-scale, efficient production of vermiculite nanosheets. Herein, we propose a paste-based sand milling method that utilizes a dumbbell-shaped impeller, high-speed stirring, small zirconia sands, and a high-concentration vermiculite paste. This approach achieves high efficiency (5.6 g h⁻¹) and yield (100%). The resulting high-quality vermiculite nanosheets were assembled with poly-m-phenyleneisophthalamide through a continuous sol–gel-film phase transition process to form composites. The vermiculite nanosheets/poly-m-phenyleneisophthalamide composite film exhibits a multi-hierarchical structure, strong interfacial interactions, and optimal comprehensive performance. It demonstrates superior tensile strength (49.5 MPa) and work-of-fracture (3.8 MJ m⁻³) compared to most reported poly-m-phenyleneisophthalamide composite films. Additionally, the film possesses enhanced thermal stability (maximum decomposition temperature: 460 ℃), outstanding thermal insulation properties (thermal conductivity: 65 mW m⁻¹ K⁻¹), and excellent flame retardancy. The paste-based sand milling method facilitates the scalable application of vermiculite nanosheets and the advanced development of vermiculite-based composite materials. The vermiculite nanosheets/poly-m-phenyleneisophthalamide composite film demonstrates strong potential for thermal insulation and infrared stealth applications.

蛭石纳米片由于其优异的绝热、阻燃、热稳定性和机械性能，在先进的复合材料中具有重要的应用前景。然而，现有的剥离方法在实现大规模、高效生产蛭石纳米片方面面临挑战。在此，我们提出了一种基于膏体的磨砂方法，该方法利用哑铃形叶轮，高速搅拌，小氧化锆砂和高浓度蛭石膏体。该方法具有较高的效率（5.6 gh−1）和产率（100%）。通过连续的溶胶-凝胶-膜相变过程，将所得的高质量蛭石纳米片与聚-苯苯酞酰胺进行组装，形成复合材料。蛭石纳米片/聚-间苯苯酞酰胺复合膜具有多层结构、强界面相互作用和最佳综合性能。与大多数报道的聚-间苯苯酞酰胺复合膜相比，它具有更高的抗拉强度（49.5 MPa）和断裂功（3.8 MJ m−3）。此外，该薄膜具有增强的热稳定性（最高分解温度：460℃），出色的隔热性能（导热系数：65 mW m−1 K−1）和优异的阻燃性。膏体制砂法促进了蛭石纳米片的规模化应用，促进了蛭石基复合材料的发展。蛭石纳米片/聚-间苯苯酞酰胺复合薄膜在隔热和红外隐身方面具有很强的应用潜力。

{"title":"Scalable fabrication of vermiculite nanosheets for high-performance thermal insulation film via multi-hierarchical assembly with poly-m-phenyleneisophthalamide","authors":"Longhui Li , Haoqing Jiang , Guang Xiao , Wei Zhang , Wei Zou , Zhenhua Zhang , Shunxi Wen , Fanzhan Zeng , Hao Li , Jianfeng Wang","doi":"10.1016/j.apsusc.2026.165873","DOIUrl":"10.1016/j.apsusc.2026.165873","url":null,"abstract":"<div><div>Vermiculite nanosheets show significant promise for advanced composite materials due to their exceptional thermal insulation, flame retardancy, thermal stability, and mechanical properties. However, existing exfoliation methods face challenges in achieving large-scale, efficient production of vermiculite nanosheets. Herein, we propose a paste-based sand milling method that utilizes a dumbbell-shaped impeller, high-speed stirring, small zirconia sands, and a high-concentration vermiculite paste. This approach achieves high efficiency (5.6 g h<sup>−1</sup>) and yield (100%). The resulting high-quality vermiculite nanosheets were assembled with poly-m-phenyleneisophthalamide through a continuous sol–gel-film phase transition process to form composites. The vermiculite nanosheets/poly-m-phenyleneisophthalamide composite film exhibits a multi-hierarchical structure, strong interfacial interactions, and optimal comprehensive performance. It demonstrates superior tensile strength (49.5 MPa) and work-of-fracture (3.8 MJ m<sup>−3</sup>) compared to most reported poly-m-phenyleneisophthalamide composite films. Additionally, the film possesses enhanced thermal stability (maximum decomposition temperature: 460 ℃), outstanding thermal insulation properties (thermal conductivity: 65 mW m<sup>−1</sup> K<sup>−1</sup>), and excellent flame retardancy. The paste-based sand milling method facilitates the scalable application of vermiculite nanosheets and the advanced development of vermiculite-based composite materials. The vermiculite nanosheets/poly-m-phenyleneisophthalamide composite film demonstrates strong potential for thermal insulation and infrared stealth applications.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"725 ","pages":"Article 165873"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Yucca-like-inspired carbon-modified CoP/Ni2P nanorods as a binder-free cathode for advanced alkaline zinc-based batteries 一种尤卡启发的碳修饰的CoP/Ni2P纳米棒作为先进碱性锌基电池的无粘结剂阴极

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165869

Mingjun Pang , Zhiyu Wu , Shang Jiang , Wanqi Zhou , Peicheng Guo , Baodian Zhu , Xiaoxin Guo , Yulin Jiao , Jianguo Zhao

The objective of this research is to develop advanced electrode materials with enhanced performance for alkaline zinc-based battery (AZB) systems. An easy and scaled-up hydrothermal approach along with a simultaneous phosphorization-carbonization tactic was used to synthesize a three-dimensional porous carbon-modified CoP/Ni₂P composite nanorod array (CNP) efficiently. The effect of the mass ratio of the precursor to the phosphorus source (sodium hypophosphite) was also investigated. It was found that a deficiency and excess of phosphorus sources resulted in structural defect and performance loss, whereas a 1:5 mass ratio (CNP-1-5) achieved complete phosphorization and optimal cooperation. Material showed a clear yucca-like nanorod structure that facilitated a high active site density, provided efficient ion conduction channels, and effectively suppressed volume expansion. The derived CNP-1-5 electrode realized a considerable areal capacitance of 526.1 μA h cm⁻² at a current density of 1 mA cm⁻², along with better rate capability, maintaining 52.9% of its capacity at 30 mA cm⁻² within a three-electrode cell. When used as a cathode in an AZB, the cathode realized a discharge capacity of 301.4 μA h cm⁻² at 4 mA cm⁻² and suppressed its capacity loss to 84.4% of its original capacity even after 3000 cycles under a high current density of 14 mA cm⁻². This work outlines a promising strategy to enhancing energy storage device performance through introducing hierarchical structural design along with interface engineering.

本研究的目的是开发具有增强性能的碱性锌基电池（AZB）系统的先进电极材料。采用简单、规模化的水热法和同步磷化-碳化技术，高效合成了三维多孔碳修饰的CoP/Ni2P复合纳米棒阵列（CNP）。研究了前驱体与磷源（次亚磷酸钠）质量比的影响。磷源缺乏和过量会导致结构缺陷和性能损失，而1:5的质量比（CNP-1-5）可以实现完全磷酸化和最佳协同。材料呈现出清晰的丝卡样纳米棒结构，促进了高活性位点密度，提供了高效的离子传导通道，并有效抑制了体积膨胀。所得的CNP-1-5电极在电流密度为1 mA cm - 2时的面电容为526.1 μA h cm - 2，并且具有更好的倍率能力，在三电极电池中，当电流密度为30 mA cm - 2时，其容量保持在52.9%。当阴极用作AZB时，在4 mA cm - 2下，阴极的放电容量为301.4 μA h cm - 2，在14 mA cm - 2的高电流密度下，即使经过3000次循环，其容量损失也被抑制在原始容量的84.4%。本文概述了通过引入分层结构设计和界面工程来提高储能装置性能的一种有前途的策略。

{"title":"A Yucca-like-inspired carbon-modified CoP/Ni2P nanorods as a binder-free cathode for advanced alkaline zinc-based batteries","authors":"Mingjun Pang , Zhiyu Wu , Shang Jiang , Wanqi Zhou , Peicheng Guo , Baodian Zhu , Xiaoxin Guo , Yulin Jiao , Jianguo Zhao","doi":"10.1016/j.apsusc.2026.165869","DOIUrl":"10.1016/j.apsusc.2026.165869","url":null,"abstract":"<div><div>The objective of this research is to develop advanced electrode materials with enhanced performance for alkaline zinc-based battery (AZB) systems. An easy and scaled-up hydrothermal approach along with a simultaneous phosphorization-carbonization tactic was used to synthesize a three-dimensional porous carbon-modified CoP/Ni<sub>2</sub>P composite nanorod array (CNP) efficiently. The effect of the mass ratio of the precursor to the phosphorus source (sodium hypophosphite) was also investigated. It was found that a deficiency and excess of phosphorus sources resulted in structural defect and performance loss, whereas a 1:5 mass ratio (CNP-1-5) achieved complete phosphorization and optimal cooperation. Material showed a clear yucca-like nanorod structure that facilitated a high active site density, provided efficient ion conduction channels, and effectively suppressed volume expansion. The derived CNP-1-5 electrode realized a considerable areal capacitance of 526.1 μA h cm<sup>−2</sup> at a current density of 1 mA cm<sup>−2</sup>, along with better rate capability, maintaining 52.9% of its capacity at 30 mA cm<sup>−2</sup> within a three-electrode cell. When used as a cathode in an AZB, the cathode realized a discharge capacity of 301.4 μA h cm<sup>−2</sup> at 4 mA cm<sup>−2</sup> and suppressed its capacity loss to 84.4% of its original capacity even after 3000 cycles under a high current density of 14 mA cm<sup>−2</sup>. This work outlines a promising strategy to enhancing energy storage device performance through introducing hierarchical structural design along with interface engineering.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"725 ","pages":"Article 165869"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temperature-dependent of stability over Mo-loaded catalyst for methanethiol elimination: A study on sulfidation behavior and deactivation mechanism 负载钼催化剂对甲烷硫醇去除稳定性的温度依赖性：硫化行为和失活机理的研究

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165863

Yutong Zhao , Jian Fang , Zhizhi Xu , Tianpeng Song , Jichang Lu , Jia Wang , Xuefeng Wei , Yongming Luo

Understanding the deactivation mechanism is pivotal for designing catalysts with high activity, stability, and sulfur resistance. In this work, a novel active species, MoS₂ enriched with sulfur vacancies, was dynamically constructed through a rapid oxygen-sulfur exchange reaction between MoO₃ and CH₃SH, which accounts for the catalyst’s outstanding low-temperature activity. A notable temperature-dependent deactivation pathway was revealed: at 350 °C, rapid deactivation is caused by competitive inhibition, where strong adsorption of CH₃SCH₃ onto the sulfur vacancies block active sites. At 400 °C, deactivation proceeds through a deposition pathway, as the decomposition fragments of CH₃SCH₃ polymerize into carbon and sulfur deposits. In contrast, at a higher temperature (450 °C), the cleavage of the C-S bond in CH₃SCH₃ proceeds more readily, promoting the formation of gaseous small molecules such as H₂S, CH₄, and CS₂. This process effectively prevents the accumulation of surface deposits, thereby ensuring durable catalytic stability. Thus, CH₃SCH₃ is identified as a key driver of deactivation, making the suppression of its formation imperative for enhancing catalytic longevity. This study clarifies the dynamic construction mechanism of active sites and their temperature-dependent deactivation behavior, providing crucial insights for developing high-performance catalysts resistant to both sulfur poisoning and carbon deposition.

了解失活机理是设计高活性、稳定性和耐硫催化剂的关键。本研究通过MoO3和CH3SH之间的快速氧硫交换反应，动态构建了一种新的活性物质——富含硫空位的MoS2，这是催化剂具有优异低温活性的原因。一个显著的温度依赖性失活途径被揭示：在350 °C时，快速失活是由竞争抑制引起的，其中CH3SCH3在硫空位上的强吸附阻断了活性位点。在400 °C时，失活通过沉积途径进行，因为CH3SCH3的分解碎片聚合成碳和硫沉积物。相反，在更高的温度下（450 °C）， CH3SCH3中的C- s键更容易断裂，促进气态小分子的形成，如H2S、CH4和CS2。这一过程有效地防止了表面沉积物的积累，从而确保了持久的催化稳定性。因此，CH3SCH3被认为是失活的关键驱动因素，抑制其形成对于延长催化寿命是必要的。该研究阐明了活性位点的动态构建机制及其温度依赖性失活行为，为开发抗硫中毒和抗碳沉积的高性能催化剂提供了重要见解。

{"title":"Temperature-dependent of stability over Mo-loaded catalyst for methanethiol elimination: A study on sulfidation behavior and deactivation mechanism","authors":"Yutong Zhao , Jian Fang , Zhizhi Xu , Tianpeng Song , Jichang Lu , Jia Wang , Xuefeng Wei , Yongming Luo","doi":"10.1016/j.apsusc.2026.165863","DOIUrl":"10.1016/j.apsusc.2026.165863","url":null,"abstract":"<div><div>Understanding the deactivation mechanism is pivotal for designing catalysts with high activity, stability, and sulfur resistance. In this work, a novel active species, MoS<sub>2</sub> enriched with sulfur vacancies, was dynamically constructed through a rapid oxygen-sulfur exchange reaction between MoO<sub>3</sub> and CH<sub>3</sub>SH, which accounts for the catalyst’s outstanding low-temperature activity. A notable temperature-dependent deactivation pathway was revealed: at 350 °C, rapid deactivation is caused by competitive inhibition, where strong adsorption of CH<sub>3</sub>SCH<sub>3</sub> onto the sulfur vacancies block active sites. At 400 °C, deactivation proceeds through a deposition pathway, as the decomposition fragments of CH<sub>3</sub>SCH<sub>3</sub> polymerize into carbon and sulfur deposits. In contrast, at a higher temperature (450 °C), the cleavage of the C-S bond in CH<sub>3</sub>SCH<sub>3</sub> proceeds more readily, promoting the formation of gaseous small molecules such as H<sub>2</sub>S, CH<sub>4</sub>, and CS<sub>2</sub>. This process effectively prevents the accumulation of surface deposits, thereby ensuring durable catalytic stability. Thus, CH<sub>3</sub>SCH<sub>3</sub> is identified as a key driver of deactivation, making the suppression of its formation imperative for enhancing catalytic longevity. This study clarifies the dynamic construction mechanism of active sites and their temperature-dependent deactivation behavior, providing crucial insights for developing high-performance catalysts resistant to both sulfur poisoning and carbon deposition.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"726 ","pages":"Article 165863"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conformal carbon encapsulation of NiCoP4O12 nanoparticles as anodes for high performance lithium-ion batteries 高性能锂离子电池正极NiCoP4O12纳米颗粒的保形碳包封

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165875

Shang Jiang , Yulin Jiao , Zhiyu Wu , Zhaoyang Song , Mingjun Pang , Wanqi Zhou , Jianguo Zhao

This study successfully synthesized novel carbon-coated NiCoP₄O₁₂ (NCPO) nanoparticles utilizing phytic acid as the phosphorus source and glucose as the carbon source through a controllable two-step process involving oil-bath evaporation pre-assembly followed by high-temperature annealing. Systematic characterization techniques (SEM, TEM, XRD, XPS, BET, Raman spectra) revealed that the resulting materials possessed a three-dimensional multi-level porous architecture and elevated specific surface area (NCPO-12: 770.8 m² g⁻¹). The electrochemical efficiency of NCPO as an anode material for lithium-ion batteries was investigated by varying the molar ratio of nickel to cobalt precursors (Ni²⁺/Co²⁺ = 1:1, 1:2, 1:3). Electrochemical tests showed that the optimal composition, NCPO-12 (Ni²⁺/Co²⁺ = 1:2), delivered a high initial specific capacity of 775.6 mA h g^- with a current density of 50 mA g⁻¹. Moreover, after 500 cycles at 1 A g⁻¹, the capacity increased to 448.7 mA h g⁻¹, corresponding to a remarkable capacity retention rate of 122.9%. The unique structural features of NCPO-12 provided an excellent conductive network, as evidenced by its low initial ohmic resistance (Rs = 5.298 Ω) and charge transfer resistance (R_ct = 249 Ω). This investigation reveals the pivotal function of stoichiometric ratio control in shaping the structure of electrode materials, while also providing a new pathway for the design of efficient bimetallic phosphate oxide materials for energy storage, which will lead to significant innovations in sustainable chemistry and engineering.

本研究以植酸为磷源，葡萄糖为碳源，通过油浴蒸发预组装和高温退火两步可控工艺，成功合成了新型碳包覆NiCoP4O12 （NCPO）纳米颗粒。系统表征技术（SEM， TEM， XRD， XPS， BET， Raman光谱）表明，所得材料具有三维多层多孔结构和较高的比表面积（NCPO-12: 770.8 m2 g−1）。通过改变镍钴前驱体的摩尔比（Ni2+/Co2+ = 1:1, 1:2, 1:3），研究了NCPO作为锂离子电池负极材料的电化学效率。电化学测试表明，最佳配比NCPO-12 （Ni2+/Co2+ = 1:2）在电流密度为50 mA g−1的情况下，具有775.6 mA h g-的高初始比容量。在1 A g−1下循环500次后，容量增加到448.7 mA h g−1，容量保持率达到122.9%。NCPO-12具有较低的初始欧姆电阻（Rs = 5.298 Ω）和电荷转移电阻（Rct = 249 Ω），具有优良的导电网络结构。该研究揭示了化学计量比控制在电极材料结构形成中的关键作用，同时也为设计高效的双金属磷酸盐氧化物储能材料提供了新的途径，这将导致可持续化学和工程的重大创新。

{"title":"Conformal carbon encapsulation of NiCoP4O12 nanoparticles as anodes for high performance lithium-ion batteries","authors":"Shang Jiang , Yulin Jiao , Zhiyu Wu , Zhaoyang Song , Mingjun Pang , Wanqi Zhou , Jianguo Zhao","doi":"10.1016/j.apsusc.2026.165875","DOIUrl":"10.1016/j.apsusc.2026.165875","url":null,"abstract":"<div><div>This study successfully synthesized novel carbon-coated NiCoP<sub>4</sub>O<sub>12</sub> (NCPO) nanoparticles utilizing phytic acid as the phosphorus source and glucose as the carbon source through a controllable two-step process involving oil-bath evaporation pre-assembly followed by high-temperature annealing. Systematic characterization techniques (SEM, TEM, XRD, XPS, BET, Raman spectra) revealed that the resulting materials possessed a three-dimensional multi-level porous architecture and elevated specific surface area (NCPO-12: 770.8 m<sup>2</sup> g<sup>−1</sup>). The electrochemical efficiency of NCPO as an anode material for lithium-ion batteries was investigated by varying the molar ratio of nickel to cobalt precursors (Ni<sup>2+</sup>/Co<sup>2+</sup> = 1:1, 1:2, 1:3). Electrochemical tests showed that the optimal composition, NCPO-12 (Ni<sup>2+</sup>/Co<sup>2+</sup> = 1:2), delivered a high initial specific capacity of 775.6 mA h g<sup>-</sup> with a current density of 50 mA g<sup>−1</sup>. Moreover, after 500 cycles at 1 A g<sup>−1</sup>, the capacity increased to 448.7 mA h g<sup>−1</sup>, corresponding to a remarkable capacity retention rate of 122.9%. The unique structural features of NCPO-12 provided an excellent conductive network, as evidenced by its low initial ohmic resistance (Rs = 5.298 Ω) and charge transfer resistance (R<sub>ct</sub> = 249 Ω). This investigation reveals the pivotal function of stoichiometric ratio control in shaping the structure of electrode materials, while also providing a new pathway for the design of efficient bimetallic phosphate oxide materials for energy storage, which will lead to significant innovations in sustainable chemistry and engineering.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"725 ","pages":"Article 165875"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal stability, flame-resistant and high strength basalt fibers/silica composite aerogels with excellent thermal insulation 热稳定性、阻燃性、高强度玄武岩纤维/二氧化硅复合气凝胶具有优异的绝热性能

IF 6.7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165861

Xuanmeng He, Yidan Zhang, Xin Xie, Juefei Cheng, Hui Liu

The mechanical properties and porous structure of aerogels are crucial for their application in acoustic and thermal insulation fields, especially in high-temperature insulation and fireproofing scenarios. In the paper, we successfully fabricated the basalt fibers/silica composite aerogels via the sol–gel process combining with the ambient pressure drying method. The mechanical properties of the dried silica aerogels were enhanced using the APTES-modified basalt fibers, which strengthened the interfacial bonding between the basalt fibers and the silica aerogels. The thermal stability and mechanical properties were further enhanced through the APTES-BF/silica composite aerogels calcined at 700 ℃. During this process, the basalt fibers underwent transformation to diopside crystals, along with a small amount molten liquid phase which combined well with the silica aerogels, while the mesoporous network of silica aerogels were remained. The APTES-BF/silica composite aerogels calcined at 700 ℃ exhibited an excellent compressive strength of 302.46 k Pa, which was more than twice that of the composite aerogels before calcination. Meanwhile, the excellent thermal insulation properties and flame-resistant performance of composite aerogels after calcining at 700 ℃ were verified. Under the heating condition of 300 ℃, the temperature gap between the upper and lower surfaces of the composite aerogels with the thickness of 8 mm eventually reached 194.9 ℃. These results demonstrate that the A-BF/silica composite aerogels calcined at 700 ℃ hold great potential for thermal insulation applications, especially in high-temperature insulation and fireproofing fields.

气凝胶的力学性能和多孔结构对其在声学和隔热领域的应用至关重要，特别是在高温隔热和防火方面。本文采用溶胶-凝胶法结合常压干燥法制备了玄武岩纤维/二氧化硅复合气凝胶。经aptes改性的玄武岩纤维增强了玄武岩纤维与二氧化硅气凝胶的界面结合，提高了干燥后二氧化硅气凝胶的力学性能。经700℃煅烧后，APTES-BF/二氧化硅复合气凝胶的热稳定性和力学性能得到了进一步提高。在此过程中，玄武岩纤维转变为透辉石晶体，并有少量熔融液相与二氧化硅气凝胶结合良好，但仍保留了二氧化硅气凝胶的介孔网络。经700℃煅烧的APTES-BF/二氧化硅复合气凝胶抗压强度达到302.46 k Pa，是煅烧前复合气凝胶的2倍以上。同时，验证了复合气凝胶在700℃煅烧后的优异保温性能和阻燃性能。在300℃的加热条件下，厚度为8 mm的复合气凝胶的上下表面温度差最终达到194.9℃。结果表明，700℃煅烧的A-BF/二氧化硅复合气凝胶具有很大的保温应用潜力，特别是在高温保温和防火领域。

{"title":"Thermal stability, flame-resistant and high strength basalt fibers/silica composite aerogels with excellent thermal insulation","authors":"Xuanmeng He, Yidan Zhang, Xin Xie, Juefei Cheng, Hui Liu","doi":"10.1016/j.apsusc.2026.165861","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.165861","url":null,"abstract":"The mechanical properties and porous structure of aerogels are crucial for their application in acoustic and thermal insulation fields, especially in high-temperature insulation and fireproofing scenarios. In the paper, we successfully fabricated the basalt fibers/silica composite aerogels via the sol–gel process combining with the ambient pressure drying method. The mechanical properties of the dried silica aerogels were enhanced using the APTES-modified basalt fibers, which strengthened the interfacial bonding between the basalt fibers and the silica aerogels. The thermal stability and mechanical properties were further enhanced through the APTES-BF/silica composite aerogels calcined at 700 ℃. During this process, the basalt fibers underwent transformation to diopside crystals, along with a small amount molten liquid phase which combined well with the silica aerogels, while the mesoporous network of silica aerogels were remained. The APTES-BF/silica composite aerogels calcined at 700 ℃ exhibited an excellent compressive strength of 302.46 k Pa, which was more than twice that of the composite aerogels before calcination. Meanwhile, the excellent thermal insulation properties and flame-resistant performance of composite aerogels after calcining at 700 ℃ were verified. Under the heating condition of 300 ℃, the temperature gap between the upper and lower surfaces of the composite aerogels with the thickness of 8 mm eventually reached 194.9 ℃. These results demonstrate that the A-BF/silica composite aerogels calcined at 700 ℃ hold great potential for thermal insulation applications, especially in high-temperature insulation and fireproofing fields.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"2 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145920523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving high-performance electrochromism in WO3 films via sputtering power-tuned short-range ordered structures 通过溅射功率调谐的短程有序结构实现WO3薄膜的高性能电致变色

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165871

Shengfei Sun , Lei Zhao , Yuhua Zhang , Jicun Shi , Hongxing Han , Zhifeng Liu , Shiyu Feng

Harnessing the synergy between the rapid ion transport of amorphous phases and the robust stability of crystalline phases is key to next-generation electrochromic devices. Moving beyond extrinsic doping and complex nanostructuring, this work introduces an intrinsic short-range ordering (SRO) engineering strategy, achieved through precise kinetic control during magnetron sputtering. Tuning the sputtering power to 200 W is shown to optimize adatom mobility, steering WO₃ films into a metastable amorphous‑nanocrystalline hybrid state with distinct SRO character. This unique architecture concurrently establishes open percolation channels for fast ion diffusion and a locally ordered framework for efficient electron transport, thereby overcoming the fundamental limitations of single‑phase materials. The resulting SRO‑optimized film delivers outstanding electrochromic performance: a high optical modulation of 66.24%, a coloration efficiency of 38.3 cm²·C⁻¹, and rapid switching kinetics. This study not only decodes the sputtering‑power‑driven structure–property relationship in non‑equilibrium growth but also identifies the SRO phase as an ideal active‑shell material for advanced core–shell heterostructures, providing a crucial foundation for the design of scalable, high‑performance electrochromic systems.

利用非晶相的快速离子传输和晶相的强大稳定性之间的协同作用是下一代电致变色器件的关键。超越外在掺杂和复杂的纳米结构，本研究引入了一种内在短程有序（SRO）工程策略，通过磁控溅射过程中的精确动力学控制来实现。将溅射功率调至200 W可优化配原子迁移率，将WO3薄膜转变为具有明显SRO特征的亚稳态非晶-纳米晶杂化态。这种独特的结构同时建立了用于快速离子扩散的开放渗透通道和用于有效电子传输的局部有序框架，从而克服了单相材料的基本限制。所得到的SRO优化薄膜具有出色的电致变色性能：66.24%的高光学调制，38.3 cm2·C−1的显色效率，以及快速的切换动力学。本研究不仅解析了非平衡生长中溅射功率驱动的结构-性能关系，而且还确定了SRO相是先进核-壳异质结构的理想活性壳材料，为设计可扩展的高性能电致变色系统提供了重要基础。

{"title":"Achieving high-performance electrochromism in WO3 films via sputtering power-tuned short-range ordered structures","authors":"Shengfei Sun , Lei Zhao , Yuhua Zhang , Jicun Shi , Hongxing Han , Zhifeng Liu , Shiyu Feng","doi":"10.1016/j.apsusc.2026.165871","DOIUrl":"10.1016/j.apsusc.2026.165871","url":null,"abstract":"<div><div>Harnessing the synergy between the rapid ion transport of amorphous phases and the robust stability of crystalline phases is key to next-generation electrochromic devices. Moving beyond extrinsic doping and complex nanostructuring, this work introduces an intrinsic short-range ordering (SRO) engineering strategy, achieved through precise kinetic control during magnetron sputtering. Tuning the sputtering power to 200 W is shown to optimize adatom mobility, steering WO<sub>3</sub> films into a metastable amorphous‑nanocrystalline hybrid state with distinct SRO character. This unique architecture concurrently establishes open percolation channels for fast ion diffusion and a locally ordered framework for efficient electron transport, thereby overcoming the fundamental limitations of single‑phase materials. The resulting SRO‑optimized film delivers outstanding electrochromic performance: a high optical modulation of 66.24%, a coloration efficiency of 38.3 cm<sup>2</sup>·C<sup>−1</sup>, and rapid switching kinetics. This study not only decodes the sputtering‑power‑driven structure–property relationship in non‑equilibrium growth but also identifies the SRO phase as an ideal active‑shell material for advanced core–shell heterostructures, providing a crucial foundation for the design of scalable, high‑performance electrochromic systems.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"726 ","pages":"Article 165871"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

W-doped tellurene for label-free aquaculture biomarker sensing w掺杂碲用于无标记水产养殖生物标志物传感

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165868

Munish Sharma , Mukesh Kumar Verma , Raj Kumar , Shyam Chand , Mzamo L. Shozi

Designing efficient and reusable biosensors is essential for advancing smart aquaculture monitoring. Here, we explore tungsten-doped tellurene as a sensing material for detecting key aquaculture biomarkers viz. glucose (Glc), histamine (HA), dopamine (DA), trimethylamine (TMA), and dimethylamine (DMA). First-principles and quantum transport analyses reveal that molecular adsorption induces significant modulation in electronic, transport, and optical responses, providing distinct electronic fingerprints for each biomarker. The W dopant enhances charge transport and quantum capacitance while maintaining rapid recovery and surface reversibility; key features for practical, label-free sensing. The anisotropic optical behavior further suggests its suitability for multifunctional bio-electronic and optoelectronic devices. Overall, W-doped tellurene offers a tunable and reusable 2D platform for real-time detection of aquatic biomarkers, paving the way toward intelligent aquaculture and environmental health monitoring technologies.

设计高效和可重复使用的生物传感器对于推进智能水产养殖监测至关重要。在这里，我们探索了钨掺杂碲作为检测关键水产生物标志物的传感材料，即葡萄糖（Glc）、组胺（HA）、多巴胺（DA）、三甲胺（TMA）和二甲胺（DMA）。第一性原理和量子输运分析表明，分子吸附诱导了电子、输运和光学响应的显著调制，为每种生物标志物提供了不同的电子指纹。W掺杂剂增强了电荷输运和量子电容，同时保持了快速恢复和表面可逆性；主要特点是实用，无标签传感。各向异性的光学特性进一步表明了其在多功能生物电子和光电子器件中的适用性。总体而言，w掺杂碲为实时检测水生生物标志物提供了可调且可重复使用的2D平台，为智能水产养殖和环境健康监测技术铺平了道路。

引用次数: 0

Deciphering the reduction mechanism of graphene oxide by Shewanella oneidensis and its enhancement via genetic engineering 希瓦氏菌还原氧化石墨烯的机制及其基因工程增强

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165864

Tong Lin , Wenqi Ding , Ziwei Zhang , Chunyan Xie , Miao Yu

The dynamic sequence and preference for the reduction of specific oxygen-containing functional groups during microbial reduction of graphene oxide (GO) remain poorly understood, limiting rational optimization of bioreduction strategies. In this work, we investigated the reduction of GO by Shewanella oneidensis MR–1 using time-resolved X-ray photoelectron spectroscopy (XPS) to decipher the staged deoxygenation pathway. The analysis revealed rapid removal of hydroxyl groups, gradual cleavage of epoxy/ether functionalities, transient carbonyl formation, and limited transformation of carboxyl groups, thereby clarifying the temporal order of microbial deoxygenation. To enhance reduction efficiency, four engineered strains were constructed to augment extracellular electron transfer through distinct mechanisms: flavins overproduction (C5), heterologous expression of Geobacter OmcS (OS), combined flavins secretion and OmcS expression (C5–OS), and rhodopsin-driven proton pumping (SH62). Comprehensive characterization by XPS, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and electrical resistivity measurements demonstrated strain-specific improvements, highlighting the diverse contributions of soluble shuttles, cytochrome-mediated conduction, synergistic dual-pathway enhancement, and proton motive force augmentation. This integrated approach provides mechanistic insight into microbial GO reduction and establishes a synthetic biology framework for tailoring exoelectrogenic bacteria toward sustainable production of conductive reduced graphene oxide.

在氧化石墨烯（GO）的微生物还原过程中，特定含氧官能团还原的动态顺序和偏好仍然知之甚少，限制了生物还原策略的合理优化。在这项工作中，我们利用时间分辨x射线光电子能谱（XPS）研究了希瓦氏菌MR-1对氧化石墨烯的还原，以破译分阶段脱氧途径。分析结果表明，羟基的快速去除，环氧/醚官能团的逐渐裂解，短暂羰基的形成，以及羧基的有限转化，从而明确了微生物脱氧的时间顺序。为了提高还原效率，构建了4种工程菌株，通过黄素过量分泌（C5）、异源表达Geobacter OmcS （OS）、黄素分泌和OmcS联合表达（C5 - OS）和视紫红质驱动质子泵送（SH62）等不同机制增强细胞外电子转移（EET）。通过XPS、傅里叶变换红外光谱、FTIR、拉曼光谱、x射线衍射和电阻率测量的综合表征显示了菌株特异性的改善，突出了可溶性穿梭体、细胞色素介导的传导、协同双途径增强和质子动力增强的不同贡献。这种综合方法提供了微生物氧化石墨烯还原的机制洞察，并建立了一个合成生物学框架，用于定制产电细菌，以实现导电氧化石墨烯的可持续生产。

{"title":"Deciphering the reduction mechanism of graphene oxide by Shewanella oneidensis and its enhancement via genetic engineering","authors":"Tong Lin , Wenqi Ding , Ziwei Zhang , Chunyan Xie , Miao Yu","doi":"10.1016/j.apsusc.2026.165864","DOIUrl":"10.1016/j.apsusc.2026.165864","url":null,"abstract":"<div><div>The dynamic sequence and preference for the reduction of specific oxygen-containing functional groups during microbial reduction of graphene oxide (GO) remain poorly understood, limiting rational optimization of bioreduction strategies. In this work, we investigated the reduction of GO by <em>Shewanella oneidensis</em> MR–1 using time-resolved X-ray photoelectron spectroscopy (XPS) to decipher the staged deoxygenation pathway. The analysis revealed rapid removal of hydroxyl groups, gradual cleavage of epoxy/ether functionalities, transient carbonyl formation, and limited transformation of carboxyl groups, thereby clarifying the temporal order of microbial deoxygenation. To enhance reduction efficiency, four engineered strains were constructed to augment extracellular electron transfer through distinct mechanisms: flavins overproduction (C5), heterologous expression of <em>Geobacter</em> OmcS (OS), combined flavins secretion and OmcS expression (C5–OS), and rhodopsin-driven proton pumping (SH62). Comprehensive characterization by XPS, Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and electrical resistivity measurements demonstrated strain-specific improvements, highlighting the diverse contributions of soluble shuttles, cytochrome-mediated conduction, synergistic dual-pathway enhancement, and proton motive force augmentation. This integrated approach provides mechanistic insight into microbial GO reduction and establishes a synthetic biology framework for tailoring exoelectrogenic bacteria toward sustainable production of conductive reduced graphene oxide.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"725 ","pages":"Article 165864"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra-thin p-type nickel oxide films grown by reactive pulsed laser deposition at room temperature: production of a pn heterojunction 反应脉冲激光室温沉积超薄p型氧化镍薄膜：pn异质结的产生

IF 6.9 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science

Pub Date : 2026-01-09 DOI: 10.1016/j.apsusc.2026.165847

I.J. Silva-Contreras , P. Gallegos-Sanchez , W. De La Cruz , O.E. Contreras-Lopez

Metal oxide semiconductors have attracted considerable attention due to their remarkable chemical, thermal, and electronic stability. In turn, there is an interest in developing flexible technology based on these materials; however, many of the substrates used are temperature sensitive. For flexible technology to succeed, low-temperature growth of semiconductor films is essential. In this work, NiO_x thin films were deposited at room temperature under varying oxygen pressures using reactive pulsed laser deposition on glass substrates. The thin films, with an average thickness of 45 nm, were characterized in situ using X-ray photoelectron spectroscopy, which revealed the evolution of oxidation states and stoichiometry with increasing oxygen pressure. Furthermore, a p-n microdiode was fabricated via photolithography as proof that the NiO_x produced through this methodology can be integrated into a device. The films were characterized as polycrystalline, presenting cubic structure. The refractive index exhibited a range from 2.29 to 1.92 at 632.8 nm. The electrical resistivity spanned from 53.5 to 4.88 Ω cm, the carrier density was around × 10¹⁸ cm⁻³. The I-V measurement of the microdiode revealed a forward voltage of 0.6 V. These results confirm the feasibility of room-temperature growth NiO_x thin films for integration into functional flexible electronic devices.

金属氧化物半导体由于其卓越的化学、热和电子稳定性而引起了人们的广泛关注。反过来，也有兴趣开发基于这些材料的柔性技术；然而，许多使用的基板是温度敏感的。为了使柔性技术取得成功，半导体薄膜的低温生长是必不可少的。在这项工作中，在室温下，在不同的氧压力下，使用反应脉冲激光沉积在玻璃衬底上沉积了NiOx薄膜。利用x射线光电子能谱对平均厚度为45 nm的薄膜进行了原位表征，揭示了氧化态和化学计量学随氧压升高的变化规律。此外，通过光刻技术制造了一个p-n微二极管，证明通过这种方法生产的NiOx可以集成到器件中。薄膜呈多晶状，呈立方结构。在632.8 nm处的折射率为2.29 ~ 1.92。电阻率范围为53.5 ~ 4.88 Ω cm，载流子密度约为× 1018 cm−3。微二极管的I-V测量显示正向电压为0.6 V。这些结果证实了室温生长NiOx薄膜集成到功能性柔性电子器件中的可行性。

{"title":"Ultra-thin p-type nickel oxide films grown by reactive pulsed laser deposition at room temperature: production of a pn heterojunction","authors":"I.J. Silva-Contreras , P. Gallegos-Sanchez , W. De La Cruz , O.E. Contreras-Lopez","doi":"10.1016/j.apsusc.2026.165847","DOIUrl":"10.1016/j.apsusc.2026.165847","url":null,"abstract":"<div><div>Metal oxide semiconductors have attracted considerable attention due to their remarkable chemical, thermal, and electronic stability. In turn, there is an interest in developing flexible technology based on these materials; however, many of the substrates used are temperature sensitive. For flexible technology to succeed, low-temperature growth of semiconductor films is essential. In this work, NiO<sub>x</sub> thin films were deposited at room temperature under varying oxygen pressures using reactive pulsed laser deposition on glass substrates. The thin films, with an average thickness of 45 nm, were characterized <em>in situ</em> using X-ray photoelectron spectroscopy, which revealed the evolution of oxidation states and stoichiometry with increasing oxygen pressure. Furthermore, a <em>p-n</em> microdiode was fabricated via photolithography as proof that the NiO<sub>x</sub> produced through this methodology can be integrated into a device. The films were characterized as polycrystalline, presenting cubic structure. The refractive index exhibited a range from 2.29 to 1.92 at 632.8 nm. The electrical resistivity spanned from 53.5 to 4.88 Ω cm, the carrier density was around × 10<sup>18</sup> cm<sup>−3</sup>. The I-V measurement of the microdiode revealed a forward voltage of 0.6 V. These results confirm the feasibility of room-temperature growth NiO<sub>x</sub> thin films for integration into functional flexible electronic devices.</div></div>","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"725 ","pages":"Article 165847"},"PeriodicalIF":6.9,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0