ACS Applied Materials & Interfaces最新文献

英文中文

Unconventional Photovoltaic Effect in a Perovskite-Coated Metal–Insulator–Graphene Photodiode

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.4c14665

Alexander Löwen, Naveen Kolluru, Zhuang Miao, Christian Tückmantel, Cedric Kreusel, Stefan Janicke, Thomas Riedl, Daniel Neumaier

The photovoltaic effect offers a simple way for converting light into an electrical signal. Here, we report on the observation of a zero-bias photocurrent in the forward direction of a perovskite-covered metal–insulator–graphene diode (MIG-diode), which is the opposite current direction compared to conventional photovoltaic cells and photodiodes. Photocurrent mapping has been performed to gain insights into the precise position of photocurrent generation, demonstrating that the zero-bias photocurrent is primarily generated at the edges of the active device area. Using the band structure diagram at the device edge and on the device area, the unconventional photocurrent direction could be well explained. In addition, the key parameters for the MIG-perovskite photodiode were extracted experimentally. This includes the power-dependent responsivity of up to 10 mA/W as well as the noise equivalent power of 2.23 × 10^–13 W/√Hz at zero-bias voltage.

引用次数: 0

Bacterial Bioaerosol-Specific Capture and In Situ Detection Using an Immune ZIF-8-Melamine Foam-Functionalized Colorimetric Biosensor

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.4c18909

Meixuan Li, Fengzhen Yang, Kaiyuan Jia, Qiang Zhang, Weichao Zheng, Hui Chen, Ming Liao, Jianhan Lin, Lei Wang

Bioaerosol infections containing pathogenic viruses and bacteria have resulted in significant economic losses and posed a serious threat to public health, as evidenced by outbreaks of coronavirus disease and avian influenza. Consequently, the sampling and screening of bioaerosols are crucial for the prevention of bioaerosol-borne diseases. In this study, an ultrasensitive biosensor based on zeolitic imidazolate framework-8-melamine foam (ZIF-8-MF) was innovatively developed for the specific capture and in situ detection of bioaerosols. The bacterial bioaerosols were collected by a wet cyclone into phosphate-buffered saline (PBS) buffer at a high collection rate, achieving a satisfactory collection efficiency of ∼80% within 10 min. The target bacteria collected in the PBS buffer were specifically captured and effectively concentrated using immune ZIF-8-MF. The gold@platinum nanozymes (GPNs) were employed to specifically label the captured target bacteria and efficiently amplify the biological signal. And the resulting colorimetric signal was analyzed via a self-developed smartphone application (App). This biosensor demonstrated the capability to detect bioaerosols containing Salmonella typhimurium in the range of 1.6 × 10²–1.6 × 10⁵ CFU/m³ within 1.5 h, with a detection limit as low as 100 CFU/m³. Compared with other bioaerosol detection methods, the biosensor offered advantages such as high collection rate, specific capture, efficient concentration, and in situ detection, positioning it as a highly promising and practical tool for the monitoring of bioaerosols containing diverse pathogenic bacteria.

{"title":"Bacterial Bioaerosol-Specific Capture and In Situ Detection Using an Immune ZIF-8-Melamine Foam-Functionalized Colorimetric Biosensor","authors":"Meixuan Li, Fengzhen Yang, Kaiyuan Jia, Qiang Zhang, Weichao Zheng, Hui Chen, Ming Liao, Jianhan Lin, Lei Wang","doi":"10.1021/acsami.4c18909","DOIUrl":"https://doi.org/10.1021/acsami.4c18909","url":null,"abstract":"Bioaerosol infections containing pathogenic viruses and bacteria have resulted in significant economic losses and posed a serious threat to public health, as evidenced by outbreaks of coronavirus disease and avian influenza. Consequently, the sampling and screening of bioaerosols are crucial for the prevention of bioaerosol-borne diseases. In this study, an ultrasensitive biosensor based on zeolitic imidazolate framework-8-melamine foam (ZIF-8-MF) was innovatively developed for the specific capture and in situ detection of bioaerosols. The bacterial bioaerosols were collected by a wet cyclone into phosphate-buffered saline (PBS) buffer at a high collection rate, achieving a satisfactory collection efficiency of ∼80% within 10 min. The target bacteria collected in the PBS buffer were specifically captured and effectively concentrated using immune ZIF-8-MF. The gold@platinum nanozymes (GPNs) were employed to specifically label the captured target bacteria and efficiently amplify the biological signal. And the resulting colorimetric signal was analyzed via a self-developed smartphone application (App). This biosensor demonstrated the capability to detect bioaerosols containing Salmonella typhimurium in the range of 1.6 × 102–1.6 × 105 CFU/m3 within 1.5 h, with a detection limit as low as 100 CFU/m3. Compared with other bioaerosol detection methods, the biosensor offered advantages such as high collection rate, specific capture, efficient concentration, and in situ detection, positioning it as a highly promising and practical tool for the monitoring of bioaerosols containing diverse pathogenic bacteria.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"12 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077583","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

Graphene-Based Microelectrodes with Reinforced Interfaces and Tunable Porous Structures for Improved Neural Recordings

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.4c19445

Miheng Dong, Junjun Yang, Fangzheng Zhen, Yu Du, Siyuan Ding, Aibing Yu, Ruiping Zou, Ling Qiu, Zhijun Guo, Harold A. Coleman, Helena C. Parkington, James B. Fallon, John S. Forsythe, Minsu Liu

Invasive neural electrodes prepared from materials with a miniaturized geometrical size could improve the longevity of implants by reducing the chronic inflammatory response. Graphene-based microfibers with tunable porous structures have a large electrochemical surface area (ESA)/geometrical surface area (GSA) ratio that has been reported to possess low impedance and high charge injection capacity (CIC), yet control of the porous structure remains to be fully investigated. In this study, we introduce wet-spun graphene-based electrodes with pores tuned by sucrose concentrations in the coagulation bath. The electrochemical properties of thermally reduced rGO were optimized by adjusting the ratio of rGO to sucrose, resulting in significantly lower impedance, higher CIC, and higher charge storage capacity (CSC) in comparison to platinum microwires. Tensile and insertion tests confirmed that optimized electrodes had sufficient strength to ensure a 100% insertion success rate with a low angle shift, thus allowing precise implantation without the need for additional mechanical enhancement. Acute in vivo recordings from the auditory cortex found low impedance benefits from the recorded amplitude of spikes, leading to an increase in the signal-to-noise ratio (SNR). Ex vivo recordings from hippocampal brain slices demonstrate that it is possible to record and stimulate with graphene-based electrodes with good fidelity compared with conventional electrodes.

{"title":"Graphene-Based Microelectrodes with Reinforced Interfaces and Tunable Porous Structures for Improved Neural Recordings","authors":"Miheng Dong, Junjun Yang, Fangzheng Zhen, Yu Du, Siyuan Ding, Aibing Yu, Ruiping Zou, Ling Qiu, Zhijun Guo, Harold A. Coleman, Helena C. Parkington, James B. Fallon, John S. Forsythe, Minsu Liu","doi":"10.1021/acsami.4c19445","DOIUrl":"https://doi.org/10.1021/acsami.4c19445","url":null,"abstract":"Invasive neural electrodes prepared from materials with a miniaturized geometrical size could improve the longevity of implants by reducing the chronic inflammatory response. Graphene-based microfibers with tunable porous structures have a large electrochemical surface area (ESA)/geometrical surface area (GSA) ratio that has been reported to possess low impedance and high charge injection capacity (CIC), yet control of the porous structure remains to be fully investigated. In this study, we introduce wet-spun graphene-based electrodes with pores tuned by sucrose concentrations in the coagulation bath. The electrochemical properties of thermally reduced rGO were optimized by adjusting the ratio of rGO to sucrose, resulting in significantly lower impedance, higher CIC, and higher charge storage capacity (CSC) in comparison to platinum microwires. Tensile and insertion tests confirmed that optimized electrodes had sufficient strength to ensure a 100% insertion success rate with a low angle shift, thus allowing precise implantation without the need for additional mechanical enhancement. Acute in vivo recordings from the auditory cortex found low impedance benefits from the recorded amplitude of spikes, leading to an increase in the signal-to-noise ratio (SNR). Ex vivo recordings from hippocampal brain slices demonstrate that it is possible to record and stimulate with graphene-based electrodes with good fidelity compared with conventional electrodes.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"10 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077585","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

Charge Transfer at the Interface of Iridium and Atomically Dispersed Mn–O Clusters Induced Full-Potential Hydrogen Oxidation

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.4c19882

Hongda Shi, Wei Zheng, Dingge Fan, Pin Meng, Jiahe Yang, Siyan Chen, Xi Lin, Xingyan Chen, Yunlong Zhang, Peichen Wang, Yang Yang, Dongdong Wang, Qianwang Chen

Hydrogen has long been an important energy source for sustainable development, and platinum group metals (PGMs) are the prominent anode catalysts for anion exchange membrane fuel cells (AEMFCs). However, among the PGM catalysts used in alkaline hydrogen oxidation reaction (HOR) for the AEMFC anode, the activity of iridium decreases sharply when the reaction potential exceeds 0.2 V vs reversible hydrogen electrode (RHE) due to the reduction of hydrogen adsorption (H_ad), which is caused by the overadsorption of OH. Herein, we prepared Ir nanoparticles with atomically dispersed Mn–O clusters on their surface (Ir/Mn_0.40OC), the difference in the work function drives the charge transfer from Mn–O clusters to Ir at full HOR potential (∼0–1.2 V vs RHE), which could upshift its d-band center to enhance H_ad. This strategy realized HOR at full potential and the 5 h durability test only lost about 10.9% current density at 0.71 V vs RHE. Moreover, this catalyst could be used in the AEMFC anode and the mass-normalized activity of the anode reaches 8.26 W mg_Ir^–1.

{"title":"Charge Transfer at the Interface of Iridium and Atomically Dispersed Mn–O Clusters Induced Full-Potential Hydrogen Oxidation","authors":"Hongda Shi, Wei Zheng, Dingge Fan, Pin Meng, Jiahe Yang, Siyan Chen, Xi Lin, Xingyan Chen, Yunlong Zhang, Peichen Wang, Yang Yang, Dongdong Wang, Qianwang Chen","doi":"10.1021/acsami.4c19882","DOIUrl":"https://doi.org/10.1021/acsami.4c19882","url":null,"abstract":"Hydrogen has long been an important energy source for sustainable development, and platinum group metals (PGMs) are the prominent anode catalysts for anion exchange membrane fuel cells (AEMFCs). However, among the PGM catalysts used in alkaline hydrogen oxidation reaction (HOR) for the AEMFC anode, the activity of iridium decreases sharply when the reaction potential exceeds 0.2 V vs reversible hydrogen electrode (RHE) due to the reduction of hydrogen adsorption (Had), which is caused by the overadsorption of OH. Herein, we prepared Ir nanoparticles with atomically dispersed Mn–O clusters on their surface (Ir/Mn0.40OC), the difference in the work function drives the charge transfer from Mn–O clusters to Ir at full HOR potential (∼0–1.2 V vs RHE), which could upshift its d-band center to enhance Had. This strategy realized HOR at full potential and the 5 h durability test only lost about 10.9% current density at 0.71 V vs RHE. Moreover, this catalyst could be used in the AEMFC anode and the mass-normalized activity of the anode reaches 8.26 W mgIr–1.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"1 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077589","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

Antisymmetric Magnetoresistance in a CrTe2/Bi2Te3/CrTe2 van der Waals Heterostructure Grown by MBE

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.4c19932

Yongkang Xu, Xingze Dai, Pengfei Yan, Jin Wang, Shuanghai Wang, Yafeng Deng, Yu Liu, Kun He, Taikun Wang, Caitao Li, Yongbing Xu, Liang He

The magnetoresistance (MR) of spin valves usually displays a symmetric dependence on the magnetic field. An antisymmetric MR phenomenon has been discovered recently that breaks field symmetry and has the potential to realize polymorphic memory. In this work, centimeter-size and high-quality CrTe₂/Bi₂Te₃/CrTe₂ van der Waals (vdWs) heterostructure devices have been prepared using molecular beam epitaxy (MBE). By changing the magnetization direction of the top and bottom layers of CrTe₂, an antisymmetric MR effect with high, intermediate, and low resistance states has been found and persists up to 75K. The emergence of this antisymmetric MR phenomenon is attributed to the spin Hall effect, which generates spin currents with both spin-up and spin-down orientations on the upper and lower surfaces of Bi₂Te₃. The spin currents diffuse or reflect at the Bi₂Te₃/CrTe₂ interfaces alongside the additional charge currents induced by the inverse spin Hall effect (ISHE). Through theoretical calculations, the existence of the antisymmetric MR effect has also been confirmed. Our work emphasizes the use of the MBE technology to grow vdWs heterostructures to explore new physical phenomena and potential applications of spin electronic devices in polymorphic solid-state storage.

{"title":"Antisymmetric Magnetoresistance in a CrTe2/Bi2Te3/CrTe2 van der Waals Heterostructure Grown by MBE","authors":"Yongkang Xu, Xingze Dai, Pengfei Yan, Jin Wang, Shuanghai Wang, Yafeng Deng, Yu Liu, Kun He, Taikun Wang, Caitao Li, Yongbing Xu, Liang He","doi":"10.1021/acsami.4c19932","DOIUrl":"https://doi.org/10.1021/acsami.4c19932","url":null,"abstract":"The magnetoresistance (MR) of spin valves usually displays a symmetric dependence on the magnetic field. An antisymmetric MR phenomenon has been discovered recently that breaks field symmetry and has the potential to realize polymorphic memory. In this work, centimeter-size and high-quality CrTe2/Bi2Te3/CrTe2 van der Waals (vdWs) heterostructure devices have been prepared using molecular beam epitaxy (MBE). By changing the magnetization direction of the top and bottom layers of CrTe2, an antisymmetric MR effect with high, intermediate, and low resistance states has been found and persists up to 75K. The emergence of this antisymmetric MR phenomenon is attributed to the spin Hall effect, which generates spin currents with both spin-up and spin-down orientations on the upper and lower surfaces of Bi2Te3. The spin currents diffuse or reflect at the Bi2Te3/CrTe2 interfaces alongside the additional charge currents induced by the inverse spin Hall effect (ISHE). Through theoretical calculations, the existence of the antisymmetric MR effect has also been confirmed. Our work emphasizes the use of the MBE technology to grow vdWs heterostructures to explore new physical phenomena and potential applications of spin electronic devices in polymorphic solid-state storage.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"25 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077587","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

Improved Uniformity and Processability of Inkjet-Printed Single-Walled Carbon Nanotube Thin-Film Transistor by Introducing Cellulose Dispersant

IF 9.5 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.4c20657

Joonyoup Kim, Minkyun Kang, Jinsu Yoon, Jiwoo Yang, Yeeun Jeong, Hayun Kim, Dong Keon Lee, Yongtaek Hong

Solution-processed thin-film transistors (TFTs) based on single-walled carbon nanotubes (SWCNTs) hold great potential for next-generation electronics owing to their remarkable electrical, mechanical, and optical characteristics. However, challenges in efficiently dispersing SWCNTs hinder scalable fabrication. Conventional methods using surfactants improve SWCNT dispersion but lead to degradation of device performance due to increased contact resistance between the SWCNTs. Furthermore, the surfactant removal process induces unexpected characteristic nonuniformity by residual surfactant and network impairment. Here, we propose a facile and effective strategy for achieving superior performance uniformity in inkjet-printed SWCNT TFTs by using cellulose as a dispersant for SWCNTs. Cellulose-based SWCNT ink exhibits excellent dispersibility and stability, preserving the intrinsic electronic properties of SWCNTs while enabling optimal droplet formation for inkjet printing by adjusting the cellulose concentration. Based on the thermal decomposition characteristics of cellulose, we form a uniform SWCNT random network channel without affecting the nanotube network by selectively removing cellulose through a simple annealing process. As a result, the SWCNT TFTs fabricated on a 4-in. wafer substrate show significant improvements in characteristic uniformity, with a reduction of over 35% in performance variation, and exhibit strengths in switching performance compared to conventional surfactant-based SWCNT TFT fabrication methods.

{"title":"Improved Uniformity and Processability of Inkjet-Printed Single-Walled Carbon Nanotube Thin-Film Transistor by Introducing Cellulose Dispersant","authors":"Joonyoup Kim, Minkyun Kang, Jinsu Yoon, Jiwoo Yang, Yeeun Jeong, Hayun Kim, Dong Keon Lee, Yongtaek Hong","doi":"10.1021/acsami.4c20657","DOIUrl":"https://doi.org/10.1021/acsami.4c20657","url":null,"abstract":"Solution-processed thin-film transistors (TFTs) based on single-walled carbon nanotubes (SWCNTs) hold great potential for next-generation electronics owing to their remarkable electrical, mechanical, and optical characteristics. However, challenges in efficiently dispersing SWCNTs hinder scalable fabrication. Conventional methods using surfactants improve SWCNT dispersion but lead to degradation of device performance due to increased contact resistance between the SWCNTs. Furthermore, the surfactant removal process induces unexpected characteristic nonuniformity by residual surfactant and network impairment. Here, we propose a facile and effective strategy for achieving superior performance uniformity in inkjet-printed SWCNT TFTs by using cellulose as a dispersant for SWCNTs. Cellulose-based SWCNT ink exhibits excellent dispersibility and stability, preserving the intrinsic electronic properties of SWCNTs while enabling optimal droplet formation for inkjet printing by adjusting the cellulose concentration. Based on the thermal decomposition characteristics of cellulose, we form a uniform SWCNT random network channel without affecting the nanotube network by selectively removing cellulose through a simple annealing process. As a result, the SWCNT TFTs fabricated on a 4-in. wafer substrate show significant improvements in characteristic uniformity, with a reduction of over 35% in performance variation, and exhibit strengths in switching performance compared to conventional surfactant-based SWCNT TFT fabrication methods.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"14 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077588","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

Correction to "Wrinkle Clamp Down on Structure Crack Strain Sensor Based on High Poisson's Ratio Material for Home Health Monitoring and Human-Machine Interaction".

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-02-02 DOI: 10.1021/acsami.5c00576

Yuanlong Zhang, Yu Xiao, Yun Xu, Shaochun Zhang, Changming Qu, Hanyun Liu, Kai Huang, Hanxiao Shao

引用次数: 0

Decomposition of Binary Mixtures of DMC/EC, EMC/EC, and DEC/EC on Potassium Surfaces; GC, XPS, and Calculation.

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-01-31 DOI: 10.1021/acsami.4c17461

Leonie Wildersinn, Daniel Stottmeister, Fabian Jeschull, Axel Groß, Andreas Hofmann

Potassium-ion batteries (KIBs) have emerged as promising candidates for low-cost, high-energy storage systems, driven by their fast ionic conductivity and high operating voltage. To develop advanced KIBs, the performance is usually evaluated in half-cell tests using highly reactive potassium metal, which often leads to misinterpretation of the results due to degradation processes between metal anode and electrolyte components. Here, we systematically investigated the surface reactivity of potassium metal, which is in contact with commonly used solvent combinations, namely, mixtures of ethylene carbonate and linear bis(alkyl)carbonates. Mass spectrometry analysis identified the main electrolyte degradation species, namely, di- and trifunctionalized carbonates, ether-bridged carbonates, and ether-like compounds. Possible reaction pathways for the formation of these products were evaluated by using density functional theory calculations (DFT). X-ray photoelectron spectroscopy showed that potassium metal favors the formation of electrode degradation species, leading to an inorganic rich solid electrolyte interphase composed of K₂CO₃, KOH, and R-OK species. Additionally, we were able to show how the potassium metal itself forms an initial surface layer containing KOH and K₂CO₃. This study highlights the complexity of KIB measurements and clearly reveals the challenges of interpreting half-cell tests.

{"title":"Decomposition of Binary Mixtures of DMC/EC, EMC/EC, and DEC/EC on Potassium Surfaces; GC, XPS, and Calculation.","authors":"Leonie Wildersinn, Daniel Stottmeister, Fabian Jeschull, Axel Groß, Andreas Hofmann","doi":"10.1021/acsami.4c17461","DOIUrl":"https://doi.org/10.1021/acsami.4c17461","url":null,"abstract":"Potassium-ion batteries (KIBs) have emerged as promising candidates for low-cost, high-energy storage systems, driven by their fast ionic conductivity and high operating voltage. To develop advanced KIBs, the performance is usually evaluated in half-cell tests using highly reactive potassium metal, which often leads to misinterpretation of the results due to degradation processes between metal anode and electrolyte components. Here, we systematically investigated the surface reactivity of potassium metal, which is in contact with commonly used solvent combinations, namely, mixtures of ethylene carbonate and linear bis(alkyl)carbonates. Mass spectrometry analysis identified the main electrolyte degradation species, namely, di- and trifunctionalized carbonates, ether-bridged carbonates, and ether-like compounds. Possible reaction pathways for the formation of these products were evaluated by using density functional theory calculations (DFT). X-ray photoelectron spectroscopy showed that potassium metal favors the formation of electrode degradation species, leading to an inorganic rich solid electrolyte interphase composed of K2CO3, KOH, and R-OK species. Additionally, we were able to show how the potassium metal itself forms an initial surface layer containing KOH and K2CO3. This study highlights the complexity of KIB measurements and clearly reveals the challenges of interpreting half-cell tests.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":" ","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143062113","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

Universal Analysis Method for Metamaterial-Based Wireless Power Transfer with Arbitrary Energy Source Waveforms: Application to Triboelectric Nanogenerators.

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-01-31 DOI: 10.1021/acsami.4c17818

Liangquan Xu, Jiaqi Lu, Jianhui Wu, Jie Li, Dinku Hazarika, Chi Zhang, Weipeng Xuan, Hao Jin, Jikui Luo

Metamaterial-based wireless power transfer (MM-WPT) analysis has attracted substantial attention due to its great application potential. However, traditional MM-WPT analysis is constrained by frequency domain approaches which are suitable only for infinitely extended periodic signals or fixed-frequency sine waves but not suitable for complex waveforms of various energy sources. This paper presents an innovative time-domain system analysis method for MM-WPT systems tailored to evaluate energy sources with arbitrary waveforms. The foundation of the method is to use the unit impulse response. By convolving this impulse response with any type of excitation source, a temporal waveform of the voltage across the system's load can be obtained. It has demonstrated a high degree of correlation and agreement between theoretical calculations and experimental results for various input waveforms, affirming its validity, precision, and universality. Based on the framework, it is shown that triboelectric nanogenerators can efficiently self-powered transfer wireless energy through MM-WPT systems. Experiments reveal that the energy received is up to 59.6 times higher compared with that of WPT systems without metamaterials. When this system is applied in an implant, it demonstrates a remarkable energy transfer efficiency of 51% through biological tissues. These findings represent a significant breakthrough in optimizing WPT systems for compact and efficient self-powered energy applications.

{"title":"Universal Analysis Method for Metamaterial-Based Wireless Power Transfer with Arbitrary Energy Source Waveforms: Application to Triboelectric Nanogenerators.","authors":"Liangquan Xu, Jiaqi Lu, Jianhui Wu, Jie Li, Dinku Hazarika, Chi Zhang, Weipeng Xuan, Hao Jin, Jikui Luo","doi":"10.1021/acsami.4c17818","DOIUrl":"https://doi.org/10.1021/acsami.4c17818","url":null,"abstract":"Metamaterial-based wireless power transfer (MM-WPT) analysis has attracted substantial attention due to its great application potential. However, traditional MM-WPT analysis is constrained by frequency domain approaches which are suitable only for infinitely extended periodic signals or fixed-frequency sine waves but not suitable for complex waveforms of various energy sources. This paper presents an innovative time-domain system analysis method for MM-WPT systems tailored to evaluate energy sources with arbitrary waveforms. The foundation of the method is to use the unit impulse response. By convolving this impulse response with any type of excitation source, a temporal waveform of the voltage across the system's load can be obtained. It has demonstrated a high degree of correlation and agreement between theoretical calculations and experimental results for various input waveforms, affirming its validity, precision, and universality. Based on the framework, it is shown that triboelectric nanogenerators can efficiently self-powered transfer wireless energy through MM-WPT systems. Experiments reveal that the energy received is up to 59.6 times higher compared with that of WPT systems without metamaterials. When this system is applied in an implant, it demonstrates a remarkable energy transfer efficiency of 51% through biological tissues. These findings represent a significant breakthrough in optimizing WPT systems for compact and efficient self-powered energy applications.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":" ","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143062375","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

Light and Carrier Transportation Management in Transparent Electrode for Achieving over 30% Efficiency Perovskite/Silicon Tandem Solar Cells.

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces

Pub Date : 2025-01-31 DOI: 10.1021/acsami.4c18952

Wei Han, Jin Wang, Sihan Li, Lizetong Sun, Biao Shi, Qixing Zhang, Qian Huang, Ying Zhao, Xiaodan Zhang

Perovskite/silicon tandem solar cells have drawn widespread attention owing to their higher power conversion efficiency (PCE). However, reducing the reflection and parasitic absorption as much as possible in the transparent electrode is of considerable interest to promote the tandem device to obtain higher circuit current density (J_SC). Furthermore, the carrier vertical and lateral transport capability of transparent electrodes also affects the electrical performance of solar cells. Herein, we designed and realized a stacked structure of a columnar-equiaxed zirconium-doped indium oxide (IZrO) film. The optimal stacked IZrO thin film shows carrier density and mobility of 9.4 × 10²⁰ cm^-3 and 29.7 cm² V^-1 s^-1, respectively. Additionally, it also shows superior optical transmittance and lower parasitic absorption in the visible-to-near-infrared region. In addition, reflectance in the perovskite/c-Si tandem solar cell shows an obvious reduction after the application of a stacked IZrO transparent electrode because of the gradient refractive index. Finally, the stacked IZrO transparent electrode was incorporated into P-I-N-type perovskite/textured-silicon tandem solar cells, and the champion stacked IZrO-based device showed PCE of 30.12% with an active area of 1.05 cm².

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