Solid State Sciences最新文献

Preparation and performance study of novel electrochromic thin films based on 3,4,9,10-perylenetetracarboxylic diimide (PDINH) via spin-coating 基于3,4,9,10-苝四羧基二亚胺（PDINH）的新型电致变色薄膜的制备及性能研究

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-29 DOI: 10.1016/j.solidstatesciences.2026.108239

Rongkang Yan , Yongkang Tang , Tingting Yao , Chang Liu , Tian Bao , Gang Li

A novel 3,4,9,10-perylenetetracarboxydiimide (PDINH)-based electrochromic thin film was fabricated, and its electrochromic properties were investigated in depth. After successfully preparing the PDINH electrochromic films via spin-coating, the surface micromorphology and structure of the films were comprehensively characterized. Electrochemical measurements and transmittance tests of the PDINH films were conducted using an electrochemical workstation and UV–Vis spectrophotometer, respectively. Experimental results demonstrated that PDINH exhibited remarkable coloration efficiency and versatile color-switching behaviors. Upon applying an external potential ranging from 1 V to −1.5 V, the PDINH film with 5 spin-coating cycles underwent sequential transitions from purple to blue and from blue to brick red. Specifically, the forward response time for the purple-to-blue transition was 1.5 s, with a reverse recovery time of 2.1 s from blue to purple. The corresponding optical modulation amplitude and coloration efficiency were 8.2 % and 13.9 cm²/C, respectively. During the blue-to-brick red transition, the forward and reverse response times were 0.9 s and 1.8 s, accompanied by an optical modulation amplitude of 21.7 % and coloration efficiency of 28.3 cm²/C. Cyclic voltammetry (CV) tests further confirmed the excellent stability of PDINH electrochromic films. This study conducts an in-depth investigation of a novel electrochromic material, providing references and insights for the subsequent research on PDINH-based electrochromic devices.

制备了一种新型的3,4,9,10-苝四羧基二亚胺（PDINH）基电致变色薄膜，并对其电致变色性能进行了深入研究。通过旋涂法制备PDINH电致变色薄膜后，对薄膜的表面微观形貌和结构进行了全面表征。利用电化学工作站和紫外-可见分光光度计分别对PDINH薄膜进行了电化学测量和透射率测试。实验结果表明，PDINH具有显著的显色效率和多种颜色切换行为。当施加1 V至−1.5 V的外部电位时，具有5个旋转涂层循环的PDINH薄膜经历了从紫色到蓝色和从蓝色到砖红色的顺序转变。具体来说，从紫色到蓝色的正向响应时间为1.5 s，从蓝色到紫色的反向恢复时间为2.1 s。相应的光调制幅度和显色效率分别为8.2%和13.9 cm2/C。在蓝-砖红转换过程中，正向和反向响应时间分别为0.9 s和1.8 s，光调制幅度为21.7%，显色效率为28.3 cm2/C。循环伏安（CV）试验进一步证实了PDINH电致变色膜的优良稳定性。本研究对一种新型电致变色材料进行了深入的研究，为后续基于pdinh的电致变色器件的研究提供了参考和见解。

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引用次数: 0

Praseodymium barium ferrites in the PrOx – BaO – ½ Fe2O3 system: phase equilibria, crystal structure and oxygen content PrOx - BaO -½Fe2O3体系中的镨钡铁氧体：相平衡、晶体结构和氧含量

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-28 DOI: 10.1016/j.solidstatesciences.2026.108238

M.V. Davydova, N.E. Volkova, V.A. Cherepanov

Phase diagram for the PrO_x – BaO – ½ Fe₂O₃ system has been constructed at 1100 °C in air. It was found that barium ferrite forms solid solutions (Ba_1-xPr_x)(Fe_1-kPr_k)O_3-δ with a cubic structure (SG Pm-3m) by simultaneously replacing Ba and Fe in the A and B sublattices with Pr. An increase in the Pr content in A positions narrows the homogeneity range in the B-sublattice. The homogeneity range of the orthorhombic Ba_1-xPr_xFeO_3-δ solid solution on the praseodymium ferrite side is estimated as 0.75 ≤ x ≤ 1.0. Two other complex oxides that form in the system at 1100 °C in air are tetragonal Pr_1.95Ba_1.05Fe₂O_7-δ, belonging to the Ruddlesden-Popper (RP) series with n = 2 (SG P4₂/mnm), and the hexagonal Ba₆Pr_2.1Fe_3.9O₁₅ (SG P6₃mc). The oxygen content in the Ba_1-xPr_xFeO_3-δ solid solutions was measured by TGA.

建立了PrOx - BaO -½Fe2O3体系在1100℃空气中的相图。结果表明，钡铁氧体通过同时用Pr取代a和B亚晶格中的Ba和Fe，形成具有立方结构（SG Pm-3m）的固溶体（Ba1-xPrx）（Fe1-kPrk）O3-δ。a位置Pr含量的增加缩小了B亚晶格中的均匀性范围。铁酸镨侧Ba1-xPrxFeO3-δ正交固溶体的均匀性范围为0.75≤x≤1.0。另外两种在1100℃空气中形成的络合氧化物是Pr1.95Ba1.05Fe2O7-δ，属于Ruddlesden-Popper （RP）系列，n = 2 （SG P42/mnm）和ba6pr2.1 fe3.90 o15 （SG P63mc）。用热重分析仪测定了Ba1-xPrxFeO3-δ固溶体中的氧含量。

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引用次数: 0

Ag doping-induced surface functionalization of ZnO film for enhanced molecular orientation and electrical properties 银掺杂诱导ZnO膜的表面功能化以增强分子取向和电学性能

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-27 DOI: 10.1016/j.solidstatesciences.2026.108235

Dong Wook Lee , Dae-Hyun Kim , Dae-Shik Seo

In this study, a zinc oxide (ZnO) film doped with silver (Ag) nanoparticles is introduced and utilized as an alignment layer for liquid crystal (LC) molecules. The film was fabricated using a brush-based solution coating process, with Ag doping concentrations controlled at 0, 10, and 20 wt%. The optical transmittance of the Ag-doped ZnO films exceeded 82.9 %, demonstrating performance comparable to that of conventionally used indium-tin-oxide-coated glass, indicating their potential applicability in optoelectronic devices. Uniform LC alignment on the Ag-doped ZnO film was confirmed through polarized optical microscopy analysis, exhibiting excellent light controllability. The successful incorporation of Ag into the ZnO film was verified using X-ray photoelectron spectroscopy. Additionally, scanning electron microscopy and X-ray diffraction analyses revealed an anisotropic amorphous surface structure, attributed to the unidirectional movement of the brush hairs during coating. Ag doping in the ZnO film enhanced the polar anchoring energy of the LC layer, which is crucial for image stability. This improvement also contributed to a reduction in image sticking effects and a lower residual direct current voltage. Overall, these results demonstrate the feasibility of employing Ag-doped ZnO films as functional components in electronic devices.

在本研究中，引入了一种掺杂银纳米粒子的氧化锌（ZnO）薄膜，并将其用作液晶（LC）分子的对准层。薄膜的制备采用刷基溶液涂层工艺，银掺杂浓度控制在0、10和20 wt%。ag掺杂ZnO薄膜的透光率超过82.9%，其性能与传统的氧化铟锡镀膜玻璃相当，表明其在光电器件中的潜在适用性。通过偏光显微镜分析，证实了LC在ag掺杂ZnO薄膜上排列均匀，具有良好的光可控性。用x射线光电子能谱法验证了Ag在ZnO薄膜中的成功掺入。此外，扫描电镜和x射线衍射分析显示，涂层过程中刷毛的单向运动导致了非晶态表面结构的各向异性。Ag在ZnO薄膜中的掺杂增强了LC层的极性锚定能，这对图像稳定性至关重要。这一改进还有助于减少图像粘滞效应和降低剩余直流电压。总之，这些结果证明了在电子器件中使用掺杂ag的ZnO薄膜作为功能元件的可行性。

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引用次数: 0

Environmental evaluation of oxynitride synthesis pathways using Life Cycle Assessment 基于生命周期评价的氮化氧合成途径环境评价

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-23 DOI: 10.1016/j.solidstatesciences.2026.108233

Margarida Barroso , Arooba Nazneen , Maximilian Hackner , Wenjie Xie , Anke Weidenkaff , Marc Widenmeyer

(Thermal) ammonolysis (A) and urea-based nitridation (U) remain the most established oxynitride synthesis routes, with U increasingly promoted as a more sustainable alternative. However, there is no quantitative environmental evaluation to verify this yet. A recently proposed lower-partial-pressure-ammonia route (AN) might also have lower environmental impact, and microwave-induced-plasma assisted ammonolysis (P) has emerged as a promising approach that enables the measurement of transport properties in dense oxynitrides, while lowering overall resource consumption. In this study, a comparative Life Cycle Assessment (LCA) of these four synthesis routes was performed using LaTiO₂N as a model system. X-ray diffraction and hot gas extraction analysis show that route A achieves the highest phase purity, whereas all other routes show traces of unreacted precursor oxide. The AN and U routes additionally show evidence of TiN and La₂O₃ formation. Route P results currently in the lowest phase purity, showing the need for future process condition adjustments. Nevertheless, electrical conductivity (210.7 S/m) and Seebeck coefficient (−128.8 μV/K) at T = 343 K could be measured for the P-derived sample, demonstrating its potential for transport property characterisation of oxynitride pellets. The LCA focused on six impact categories: climate change, non-renewable energy use, acidification, freshwater eutrophication, carcinogenic human toxicity, and material/mineral resource depletion. Synthesis A consistently exhibited the highest environmental impact, followed by AN, U, and P. These findings provide the first quantitative comparison of environmental impacts across major oxynitride synthesis routes and highlight the potential of route P as the lowest-impact alternative once phase purity challenges are addressed.

（热）氨解(A)和尿素基氮化(U)仍然是最成熟的氮化氧合成途径，U作为一种更可持续的替代方法日益得到推广。然而，目前还没有定量的环境评价来验证这一点。最近提出的低分压氨途径（AN）也可能具有较低的环境影响，微波诱导等离子体辅助氨解(P)已成为一种有前途的方法，可以测量致密氮化物中的输运特性，同时降低总体资源消耗。本研究以LaTiO2N为模型系统，对这四种合成途径进行了比较生命周期评价（LCA）。x射线衍射和热气体萃取分析表明，A路线的相纯度最高，而其他所有路线都有未反应的前驱氧化物的痕迹。AN和U路线还显示了TiN和La2O3形成的证据。路线P的结果目前处于最低相纯度，表明需要对未来的工艺条件进行调整。然而，在T = 343 K时，p衍生样品的电导率（210.7 S/m）和塞贝克系数（- 128.8 μV/K）可以测量到，表明其具有表征氮化氧颗粒输运性质的潜力。LCA侧重于六个影响类别：气候变化、不可再生能源使用、酸化、淡水富营养化、人类致癌毒性和物质/矿物资源枯竭。合成A始终表现出最大的环境影响，其次是AN、U和P。这些发现首次对主要氮化氧合成路线的环境影响进行了定量比较，并强调了一旦相纯度问题得到解决，路线P作为影响最小的替代方案的潜力。

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引用次数: 0

Investigation of Ni3S2@NF as a catalyst for the NaBH4-mediated chemical reduction of p-nitrophenol Ni3S2@NF作为nabh4介导的对硝基苯酚化学还原催化剂的研究

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-19 DOI: 10.1016/j.solidstatesciences.2026.108232

Xiujuan Cao, Tian Tian, Gang Li

The biotoxicity of p-nitrophenol (PNP) can be alleviated significantly through chemical reduction with sodium borohydride assisted by catalyst. Nevertheless, suffering from aggregation deactivation and difficulty in recovery of traditional powder catalysts, the practical application of this approach is greatly limited. Herein, we fabricated the monolithic catalyst Ni₃S₂@NF with enhanced active-site accessibility and convenient recyclability through hydrothermal treatment of nickel foam (NF) in sodium sulfide solution. The resultant Ni₃S₂@NF showed exceptional ability in catalyzing reduction of PNP with NaBH₄. A reductive conversion of 93.35 % for 500 mL of PNP with an initial concentration of 15 mg L⁻¹ within 25 min was obtained under the reaction conditions: two pieces of Ni₃S₂@NF (2 × 3 × 3 cm²), 20 mM NaBH₄ and a reaction temperature of 25 °C. The corresponding reaction rate constant was 0.1089 min⁻¹, which was 8.25 times higher than that in the system of NF/NaBH₄, revealing the critical catalytic role of the Ni₃S₂. Kinetic studies confirmed that the reduction reaction followed the Langmuir–Hinshelwood mechanism, with a low apparent activation energy of 19.12 kJ mol⁻¹. Additionally, the monolithic catalyst without special regeneration treatment exhibited robust reusability, retaining a PNP conversion of over 89.91 % after 15 consecutive cycles. Therefore, such Ni₃S₂@NF is expected to have the potenital as an efficient, stable, and easily separable non-noble metal catalyst for the remediation of nitroaromatic-contaminated wastewater.

在催化剂的辅助下，用硼氢化钠进行化学还原，对硝基苯酚（PNP）的生物毒性明显减轻。然而，由于传统粉末催化剂存在聚集失活和回收困难等问题，该方法的实际应用受到很大限制。本文通过对泡沫镍（NF）在硫化钠溶液中进行水热处理，制备了活性位点可及性增强且易于回收的单片催化剂Ni3S2@NF。所得Ni3S2@NF具有催化NaBH4还原PNP的特殊能力。反应条件为：Ni3S2@NF （2 × 3 × 3 cm2）两片，NaBH4为20 mM，反应温度为25℃，初始浓度为15 mg L−1,500 mL PNP在25 min内的还原转化率为93.35%。相应的反应速率常数为0.1089 min−1，是NF/NaBH4体系的8.25倍，显示了Ni3S2的关键催化作用。动力学研究证实，该还原反应符合Langmuir-Hinshelwood机理，表观活化能较低，为19.12 kJ mol−1。此外，未经特殊再生处理的整体式催化剂表现出强大的可重复使用性，在连续15次循环后，PNP转化率保持在89.91%以上。因此，这种Ni3S2@NF有望成为一种高效、稳定、易分离的非贵金属催化剂，用于硝基芳烃污染废水的修复。

{"title":"Investigation of Ni3S2@NF as a catalyst for the NaBH4-mediated chemical reduction of p-nitrophenol","authors":"Xiujuan Cao, Tian Tian, Gang Li","doi":"10.1016/j.solidstatesciences.2026.108232","DOIUrl":"10.1016/j.solidstatesciences.2026.108232","url":null,"abstract":"<div><div>The biotoxicity of p-nitrophenol (PNP) can be alleviated significantly through chemical reduction with sodium borohydride assisted by catalyst. Nevertheless, suffering from aggregation deactivation and difficulty in recovery of traditional powder catalysts, the practical application of this approach is greatly limited. Herein, we fabricated the monolithic catalyst Ni3S2@NF with enhanced active-site accessibility and convenient recyclability through hydrothermal treatment of nickel foam (NF) in sodium sulfide solution. The resultant Ni3S2@NF showed exceptional ability in catalyzing reduction of PNP with NaBH4. A reductive conversion of 93.35 % for 500 mL of PNP with an initial concentration of 15 mg L−1 within 25 min was obtained under the reaction conditions: two pieces of Ni3S2@NF (2 × 3 × 3 cm2), 20 mM NaBH4 and a reaction temperature of 25 °C. The corresponding reaction rate constant was 0.1089 min−1, which was 8.25 times higher than that in the system of NF/NaBH4, revealing the critical catalytic role of the Ni3S2. Kinetic studies confirmed that the reduction reaction followed the Langmuir–Hinshelwood mechanism, with a low apparent activation energy of 19.12 kJ mol−1. Additionally, the monolithic catalyst without special regeneration treatment exhibited robust reusability, retaining a PNP conversion of over 89.91 % after 15 consecutive cycles. Therefore, such Ni3S2@NF is expected to have the potenital as an efficient, stable, and easily separable non-noble metal catalyst for the remediation of nitroaromatic-contaminated wastewater.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108232"},"PeriodicalIF":3.3,"publicationDate":"2026-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rb2Dy[S2][AsS4]: Synthesis and characterization of a novel lanthanoid thioarsenate(V) containing outer-sphere disulfide dumbbells Rb2Dy[S2][AsS4]：含外球二硫哑铃的新型镧系硫代砷酸盐(V)的合成与表征

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-17 DOI: 10.1016/j.solidstatesciences.2026.108231

Katja Engel, Thomas Schleid

Solid-state syntheses with polysulfide fluxes in sealed silica ampoules offer common approaches for the successful preparation of lanthanoid thiophosphates and -arsenates. However, the synthesis of the new dysprosium thioarsenate(V)

from Rb₂S₃, As₂S₃, Dy and S at 823 K illustrates the effect of the ampoule orientation and the melt-surface during the synthesis.

crystallizes monoclinically in the centrosymmetric space group

P 2_{1} / c

with

a =

1586.12(9) pm,

b =

954.08(5) pm,

c =

784.37(4) pm and

β =

97.165(3)°for

Z =

4. Within its crystal structure, two anionic building blocks arise, namely tetrahedral

units and disulfide dumbbells

. These anions construct the eightfold sulfur coordination sphere around the unique Dy

^{3 +}

cations, assembling as face-connected bicapped trigonal prisms to form

\frac{1}{\infty}

{

} chains. They propagate along [001] and showcase a disulfide backside and a front of sulfur thorns. Separated by Rb

^{+}

cations in seven- and tenfold sulfur coordination, which complete the three-dimensional network, they are leaving small empty channels in [001] direction. Single-crystal Raman spectroscopy confirmed the presence of both disulfide dumbbells

and

tetrahedra.

在密封的二氧化硅安瓿中用多硫熔剂进行固态合成为成功制备类镧硫磷酸盐和-砷酸盐提供了常见的方法。然而，在823 K下由Rb2S3、As2S3、Dy和S合成新的硫代砷酸镝(V)表明了合成过程中安瓶取向和熔体表面的影响。当Z= 4时，a= 1586.12(9) pm, b= 954.08(5) pm, c= 784.37(4) pm, β= 97.165(3)°，在中心对称空间组P21/c中单临床结晶。在其晶体结构中，出现了两个阴离子单元，即四面体单元和二硫哑铃。这些阴离子在独特的Dy3+阳离子周围构建了8倍硫配位球，组装成面连接的双头三角棱镜，形成1∞{}链。它们沿着[001]繁殖，呈现出二硫的背面和硫刺的正面。它们被7倍和10倍硫配位的Rb+阳离子隔开，完成了三维网络，在[001]方向上留下了小的空通道。单晶拉曼光谱证实了二硫哑铃和四面体的存在。

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引用次数: 0

Unveiling the functional potential of Cr2MnAl Heusler alloy: A combined experimental and theoretical approach 揭示Cr2MnAl Heusler合金的功能潜力：实验与理论相结合的方法

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-15 DOI: 10.1016/j.solidstatesciences.2025.108205

G. Karthik , Shanmugasundaram Kamalakannan , K. Ravichandran , Sathish Panneer Selvam , Agalya Mathivanan , V.S.K. Venkatachalapathy , T.R. Naveen kumar

In this study, a Cr₂MnAl Heusler alloy was successfully synthesized via a solid-state method, and its structure was analyzed using X-ray diffraction, confirming the formation of the XA crystal structure without any secondary phases. X-ray photoelectron spectroscopy (XPS) confirmed the oxidation states of Cr, Mn, and Al, and morphological analysis revealed well-defined grain sizes. Magnetic measurements indicated paramagnetic behavior at room temperature, which transitioned to ferrimagnetic behavior at lower temperatures. Furthermore, the alloy exhibits semiconductor-like behavior, as confirmed by resistivity measurements. Hall Effect studies have highlighted the enhanced behavior attributed to the strong interfacial spin-orbit coupling at low temperatures. In addition, first-principles calculations based on density functional theory were performed, revealing intriguing phenomena, with the XA material displaying ferrimagnetic behavior characterized by negative spin polarization, in contrast to the antiferromagnetic tendencies observed in the L2₁ structure. The efficient dielectric function and absorption characteristics of these compounds suggest that they can also be employed in electromagnetic radiation-assisted energy and sensing applications. Annealing dynamic simulations revealed the thermal stability of the fabricated compounds at temperatures of up to 1000 K. We believe that our results could be useful for the development of spintronic devices, solar cells and photovoltaic cells.

本研究通过固相法成功合成了一种Cr2MnAl Heusler合金，并利用x射线衍射对其结构进行了分析，证实形成了无二次相的XA晶体结构。x射线光电子能谱（XPS）证实了Cr， Mn和Al的氧化态，形态分析显示了明确的晶粒尺寸。磁性测量表明室温下的顺磁性，在较低温度下转变为铁磁性。此外，通过电阻率测量证实，该合金表现出类似半导体的行为。霍尔效应研究强调了低温下强界面自旋轨道耦合的增强行为。此外，基于密度泛函理论进行了第一性原理计算，揭示了有趣的现象，与L21结构中观察到的反铁磁倾向相比，XA材料表现出以负自旋极化为特征的铁磁行为。这些化合物的有效介电功能和吸收特性表明它们也可以用于电磁辐射辅助能量和传感应用。退火动态模拟表明，制备的化合物在高达1000 K的温度下具有热稳定性。我们相信我们的结果对自旋电子器件、太阳能电池和光伏电池的发展是有用的。

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引用次数: 0

Influence of calcium substitution on scintillation and photoluminescence properties of organic-inorganic perovskite-type chlorides with a phenethylamine 钙取代对苯乙胺类有机-无机钙钛矿型氯化物闪烁和光致发光性能的影响

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-12 DOI: 10.1016/j.solidstatesciences.2026.108230

Keishi Yamabayashi , Itsuki Wakabayashi , Hiromi Kimura , Daisuke Nakauchi , Naoki Kawano , Takumi Kato , Noriaki Kawaguchi , Takayuki Yanagida

Organic-inorganic perovskite-type chlorides of Ca-substituted PEA₂PbCl₄ (PEA₂Pb_1-xCa_xCl₄, x = 0.01, 0.05, and 0.1) were synthesized by the solvent diffusion method, and their photoluminescence (PL) and scintillation properties were evaluated. PEA₂Pb_1-xCa_xCl₄ showed emission peaks at 500–700 nm upon excitation at 280–375 nm. In the PL decay measurement, decay time constants of 4–7 ns, attributed to the recombination of self-trapped excitons were obtained. Among the obtained samples, PEA₂Pb_0.95Ca_0.05Cl₄ showed highest PL quantum yield (5.3 %) and scintillation light yield (2500 ph/MeV). These results indicate that the Ca substitution improves the PL and scintillation properties of PEA₂PbCl₄.

采用溶剂扩散法合成了钙取代PEA2PbCl4的有机-无机钙钛矿型氯化物（PEA2Pb1-xCaxCl4, x = 0.01, 0.05, 0.1），并对其光致发光（PL）和闪烁性能进行了评价。PEA2Pb1-xCaxCl4在280 ~ 375 nm激发时，在500 ~ 700 nm处出现发射峰。在PL衰减测量中，得到了4-7 ns的衰减时间常数，这是由于自捕获激子的复合引起的。所得样品中，PEA2Pb0.95Ca0.05Cl4具有最高的PL量子产率（5.3%）和闪烁光产率（2500 ph/MeV）。这些结果表明，Ca取代提高了PEA2PbCl4的发光和闪烁性能。

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引用次数: 0

Current density driven morphology engineering and charge transfer modulation in electrodeposited CuS/TiO2 heterojunctions for enhanced solar water splitting 电沉积cu /TiO2异质结的电流密度驱动形态工程和电荷转移调制增强太阳能水分解

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-12 DOI: 10.1016/j.solidstatesciences.2026.108229

Mehri Maghsoudi , Shahin Khameneh Asl , Naeimeh Sadat Peighambardoust , Iraj Ahadzadeh

Designing efficient semiconductor heterostructures with controlled interfacial properties is essential for advancing solar-driven water splitting. Here, we present a systematic investigation of how electrodeposition current density modulates the morphology of CuS nanoparticles on one-dimensional TiO₂ nanotubes and, in turn, governs charge separation and transport dynamics in CuS/TiO₂ heterojunction photoanodes. By precisely tuning the current density from −0.5 to −2 mA cm⁻², we reveal a direct correlation between deposition conditions, nanoparticle distribution, and interfacial charge-transfer behavior. The optimized heterostructure prepared at −1 mA cm⁻² exhibits uniformly dispersed CuS nanoparticles with strong interfacial coupling, resulting in a photocurrent density 8.7 times higher than that of pristine TiO₂ and a 67 % reduction in charge-transfer resistance. Enhanced visible-light absorption, improved carrier lifetime, and elevated donor density further contribute to superior photoelectrochemical performance. This work demonstrates a facile and scalable approach for tailoring nanoscale morphology to engineer efficient heterojunction photoelectrodes, offering valuable insights for the rational design of next-generation solar water-splitting systems.

设计具有控制界面性质的高效半导体异质结构是推进太阳能驱动水分解的关键。在这里，我们系统地研究了电沉积电流密度如何调节一维TiO2纳米管上cu纳米颗粒的形态，进而控制cu /TiO2异质结光阳极中的电荷分离和传输动力学。通过精确调整电流密度从- 0.5到- 2 mA cm - 2，我们揭示了沉积条件，纳米颗粒分布和界面电荷转移行为之间的直接关联。在−1 mA cm−2条件下制备的异质结构中，cu纳米颗粒分布均匀，界面耦合强，光电流密度比原始TiO2高8.7倍，电荷转移电阻降低67%。增强的可见光吸收，改善的载流子寿命和提高的供体密度进一步促进了优越的光电化学性能。这项工作展示了一种简单且可扩展的方法来定制纳米级形态来设计高效的异质结光电极，为下一代太阳能水分解系统的合理设计提供了有价值的见解。

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引用次数: 0

Synthesis of copper-phenanthroline complexes: A solvothermal-compatible approach for the exploration of metal complexes 铜-菲罗啉配合物的合成：探索金属配合物的溶剂热相容方法

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences

Pub Date : 2026-01-10 DOI: 10.1016/j.solidstatesciences.2026.108228

Yunping Zhoujin, Michael Anim Safo, Navindra Keerthisinghe, Mark D. Smith, Sophya Garashchuk, Hans-Conrad zur Loye

Inorganic–organic hybrid materials have been widely investigated for their applications in catalysis, optics, magnetism, and biomedicine. Copper halide complexes are of particular interest due to their structural diversity and physicochemical properties. Conventional crystal growth approaches, such as slow evaporation and hydro(solvo)thermal synthesis, typically require extended reaction times and often favor thermodynamically stable phases. In this study, we prepared ten copper-phenanthroline halide (X = Cl, Br, and I) complexes using both traditional hydrothermal reactions and microwave-assisted hydrothermal methods and obtained [CuI(C₁₂H₈N₂)₂][I₃], [C₁₂H₉N₂][CuI₂]·(H₂O)_1.42, [CuI(C₁₂H₈N₂)₂]₂[I]₃[C₁₂H₉N₂]·3(H₂O), [Cu₂Cl₄(C₁₂H₈N₂)₂], [CuBr(C₁₂H₈N₂)₂]₄[Cu₂Br₄][CuBr₂][Br]₂[C₁₂H₉N₂]·(H₂O)_3.44, [CuBr₂(C₁₂H₈N₂)] and [Cu₃Br₃(C₁₂H₈N₂)₂]. The comparative results show that microwave-assisted reactions shorten the reaction time and yield additional products that are not accessible through conventional hydrothermal conditions. These findings demonstrate that microwave heating provides a complementary pathway to conventional approaches, broadening the range of accessible copper halide complexes and contributing to the design and exploration of inorganic–organic hybrid systems.

无机-有机杂化材料在催化、光学、磁学、生物医学等方面的应用得到了广泛的研究。卤化铜配合物由于其结构多样性和物理化学性质而受到特别关注。传统的晶体生长方法，如缓慢蒸发和水（溶剂）热合成，通常需要延长反应时间，并且通常有利于热力学稳定的相。本研究采用传统水热和微波辅助水热合成法制备了10种铜-菲罗啉卤化物（X = Cl, Br， I）配合物，得到了[CuI(C12H8N2)2][I3]、[C12H9N2][CuI2]·（H2O）1.42、[CuI(C12H9N2)2]2[I]3[C12H9N2]·3（H2O）、[Cu2Cl4(C12H8N2)2]、[cur (C12H8N2)2]4[Cu2Br4][CuBr2][C12H9N2]·（H2O）3.44、[CuBr2(C12H8N2)]和[Cu3Br3(C12H8N2)2]。对比结果表明，微波辅助反应缩短了反应时间，并产生了常规水热条件下无法获得的额外产物。这些发现表明，微波加热为传统方法提供了一种补充途径，扩大了可获得卤化铜配合物的范围，并有助于设计和探索无机-有机杂化体系。

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