Journal of Electronic Materials最新文献_第5页

Analysis of the Efficiency of Sb2Se3 Thin-Film Solar Cells by Introducing Alternative Buffer Layers in n–p and n–i–p Structures by Numerical Simulation 在n-p和n-i-p结构中引入缓冲层对Sb2Se3薄膜太阳能电池效率的数值模拟分析

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-03-04 DOI: 10.1007/s11664-026-12746-9

F Ayala-Mato, O Vigil-Galán, Maykel Courel, Enue Barrios Salgado

{"title":"Analysis of the Efficiency of Sb2Se3 Thin-Film Solar Cells by Introducing Alternative Buffer Layers in n–p and n–i–p Structures by Numerical Simulation","authors":"F Ayala-Mato, O Vigil-Galán, Maykel Courel, Enue Barrios Salgado","doi":"10.1007/s11664-026-12746-9","DOIUrl":"10.1007/s11664-026-12746-9","url":null,"abstract":"<div><p>Antimony selenide (Sb<sub>2</sub>Se<sub>3</sub>) solar cells are a promising emerging thin-film photovoltaic technology, but their record experimental efficiency (10.57%) remains well below the theoretical limit of ~30%. This research demonstrates, by numerical simulation, that using different buffer or electron transport layers (ETL) and device structures (<i>n</i>–<i>p</i> or <i>n</i>−i−<i>p</i>) can significantly reduce the open-circuit voltage (V<sub>oc</sub>) deficit and improve solar cell performance. We restrict the analysis to realistic material parameters, moderate defect densities, and exclusively inorganic ETLs and hole transport layers (HTLs), to facilitate experimental implementation. In <i>n</i>–<i>p</i> structures, we compare CdS with alternative single ETLs (CdSe, ZnO, V<sub>2</sub>O<sub>5</sub>) and bilayers (CdS/CdSe and ZnO/V<sub>2</sub>O<sub>5</sub>), explicitly analyzing band alignment, lattice mismatch, and interface defect density. V<sub>2</sub>O<sub>5</sub> is a promising ETL owing to its favorable band offset and small lattice mismatch with Sb<sub>2</sub>Se<sub>3</sub>. By introducing a Cu<sub>2</sub>O HTL to form an <i>n</i>–i–<i>p</i> structure, we demonstrate that the internal electric field distribution can be tailored to suppress bulk recombination in the absorber, resulting in V<sub>oc</sub> > 600 mV and efficiencies up to 17% after thickness optimization. The results provide practical design rules for integrating inorganic ETLs and HTLs in Sb<sub>2</sub>Se<sub>3</sub> solar cells, and highlight device architectures that can realistically push efficiencies beyond the current experimental record.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4164 - 4174"},"PeriodicalIF":2.5,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11664-026-12746-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulated Sunlight-Driven Photodegradation of Organic Pollutants Using 0D/1D ZnFe2O4/g-C3N4 Heterocatalysts 利用0D/1D ZnFe2O4/g-C3N4异质催化剂模拟阳光驱动的有机污染物光降解

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-03-02 DOI: 10.1007/s11664-026-12743-y

Jinsong Xie, Haojie Zhang, Yanxin Li, Tianqi Liu, Yaxin Du

{"title":"Simulated Sunlight-Driven Photodegradation of Organic Pollutants Using 0D/1D ZnFe2O4/g-C3N4 Heterocatalysts","authors":"Jinsong Xie, Haojie Zhang, Yanxin Li, Tianqi Liu, Yaxin Du","doi":"10.1007/s11664-026-12743-y","DOIUrl":"10.1007/s11664-026-12743-y","url":null,"abstract":"<div><p>In this work, zinc ferrite nanoparticle-modified tubular graphitic carbon nitride (ZnFe<sub>2</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub>, ZFO/CN) was fabricated via an ultrasound-assisted self-assembly approach. The resulting ZFO/TCN composite features an optimized mesoporous structure, characterized by a specific surface area of 71.35 m<sup>2</sup>/g and average pore size of 10.32 nm, with both values intermediate to those of the individual constituents. The composite exhibited significantly enhanced photocatalytic performance, degrading 93.5% of tetracycline (TC) within 1 h and 98.7% of rhodamine B (RhB) within 20 min. Moreover, the catalyst maintained high photocatalytic activity after four consecutive recycling experiments, demonstrating excellent reproducibility and stability. Free radical trapping experiments indicated that superoxide radicals (·O<sub>2</sub><sup>−</sup>) play a major role in the photocatalytic process. The energy band structure and charge transfer pathways of the catalyst were probed by solid-state ultraviolet diffuse reflectance spectroscopy (UV-Vis DRS) and Mott–Schottky measurements. The separation and transport efficiency of photogenerated charge carriers were systematically evaluated through transient photocurrent response and electrochemical impedance spectroscopy. Accordingly, a Z-scheme heterojunction structure was proposed for the ZFO/CN composite, along with a corresponding photocatalytic mechanism. This study offers new insights for the purification and treatment of wastewater.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4150 - 4163"},"PeriodicalIF":2.5,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemically Scalable Synthesis of Oxygen-Functionalized Graphene Nanosheets as Conductive Inks for 3D-Printed Electronic Devices 电化学可扩展合成氧功能化石墨烯纳米片作为3d打印电子器件的导电油墨

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-28 DOI: 10.1007/s11664-026-12694-4

Nguyen Anh Duc, Nguyen Thanh Hai, Nguyen Dinh Dung, Nguyen Tuan Hong, Truong Ngoc Minh, Doan Thanh Tung, Hoang Tran Dung, Nguyen Ngoc Thanh, Phan Ngoc Minh, Le Trong Lu, Phan Ngoc Hong

{"title":"Electrochemically Scalable Synthesis of Oxygen-Functionalized Graphene Nanosheets as Conductive Inks for 3D-Printed Electronic Devices","authors":"Nguyen Anh Duc, Nguyen Thanh Hai, Nguyen Dinh Dung, Nguyen Tuan Hong, Truong Ngoc Minh, Doan Thanh Tung, Hoang Tran Dung, Nguyen Ngoc Thanh, Phan Ngoc Minh, Le Trong Lu, Phan Ngoc Hong","doi":"10.1007/s11664-026-12694-4","DOIUrl":"10.1007/s11664-026-12694-4","url":null,"abstract":"<p>Graphene-based conductive inks offer a promising alternative to conventional metal nanoparticle inks in printed electronics due to their environmental safety, mechanical flexibility, and low material cost. In this study, we reported a scalable approach for the synthesis of oxygen-functionalized graphene nanosheets via electrochemical exfoliation of graphite in a neutral aqueous electrolyte, followed by ink formulation using polyvinylpyrrolidone (PVP) as a stabilizer. The resulting graphene ink exhibits viscosity of 700–1000 mPa·s, making it suitable for extrusion-based three-dimensional (3D) printing and enabling the fabrication of radio-frequency identification (RFID) dipole antennas on different substrates. Comprehensive characterization confirms the successful formation of few-layer to multilayer oxygenated graphene nanoflakes, while the printed films achieve electrical conductivity of 2.0 × 10<sup>5</sup> S/m after annealing at 250°C in air. The RFID devices printed with graphene-based ink demonstrate a read range of approximately 2.0 cm at 900 MHz. Furthermore, theoretical calculations confirm the changes in the electronic structure of oxygen-functionalized graphene compared to pristine graphene. These findings highlight the feasibility of electrochemical mass production of oxygen-functionalized graphene nanosheets and their application in creating low-cost, flexible, and eco-friendly electronic devices.</p>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4324 - 4334"},"PeriodicalIF":2.5,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiscale Stability Analysis of Fumed Silica Dispersions for Chemical Mechanical Polishing 化学机械抛光用气相二氧化硅分散体的多尺度稳定性分析

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-28 DOI: 10.1007/s11664-026-12742-z

Xusheng Cao, Chong Luo, Ziming Zhu, Shigong Fu, Anlan Liu

{"title":"Multiscale Stability Analysis of Fumed Silica Dispersions for Chemical Mechanical Polishing","authors":"Xusheng Cao, Chong Luo, Ziming Zhu, Shigong Fu, Anlan Liu","doi":"10.1007/s11664-026-12742-z","DOIUrl":"10.1007/s11664-026-12742-z","url":null,"abstract":"<div><p>The dispersion stability of fumed silica slurry is crucial to the performance of the chemical mechanical polishing process. This study employs a multi-scale approach to investigate their dispersibility. At the nanoscale, dynamic light scattering, zeta potential measurements, and transmission electron microscopy confirm that the slurry exhibits the highest dispersibility and stability at an initial pH of 13.0. At this pH, hydroxyl groups on silica particle surfaces are fully dissociated, forming a stable double layer structure that effectively inhibits particle aggregation. At the mesoscale, rheological analysis indicates the lowest gelation degree and optimal fluidity for this slurry. At the macroscale, sedimentation experiments further validate its stability; LUMiFuge testing reveals the lowest centrifugal instability index under these conditions, at merely 0.369. Under optimal operating conditions, this slurry achieves a silica removal rate of up to 2312 Å/min while reducing oxide wafer surface roughness to 0.221 nm. These findings provide crucial theoretical foundations for optimizing the performance of chemical mechanical polishing slurries.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4673 - 4689"},"PeriodicalIF":2.5,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solvation and Interface Regulation via Sodium Cyclamate for Stable Zn Anodes 环己基磺酸钠对稳定锌阳极的溶剂化和界面调节

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-28 DOI: 10.1007/s11664-026-12741-0

Xueyao Mo, Mengjie Zhu, Yan Xu, Xuena Xu, Yidong Miao, Liluo Shi, Xiangjun Kong, Wenchang Zhuang, Ming Song

{"title":"Solvation and Interface Regulation via Sodium Cyclamate for Stable Zn Anodes","authors":"Xueyao Mo, Mengjie Zhu, Yan Xu, Xuena Xu, Yidong Miao, Liluo Shi, Xiangjun Kong, Wenchang Zhuang, Ming Song","doi":"10.1007/s11664-026-12741-0","DOIUrl":"10.1007/s11664-026-12741-0","url":null,"abstract":"<div><p>Aqueous zinc-ion batteries (AZIBs) with high theoretical capacity, excellent safety, low cost, and environmental friendliness are promising for next-generation large-scale energy storage. However, their commercial application is hindered by Zn dendrite formation, hydrogen evolution reaction (HER), and Zn corrosion. In this work, sodium cyclamate (SC) is introduced as an electrolyte additive to address these problems. Experimental results demonstrate that this additive inhibits HER and Zn corrosion, and also suppresses the formation of Zn dendrites. Density functional theory calculations reveal that cyclohexylsulfamate ions (C<sup>−</sup>) derived from SC interact more strongly with Zn<sup>2+</sup>, enabling the reconstruction the Zn<sup>2+</sup> solvation structure and the H-bond network, and inhibiting hydrogen evolution and Zn corrosion. Moreover, they also preferentially adsorb on the surface of Zn anode, modifying the electrode–electrolyte interface. The increased nucleation overpotential and three-dimensional diffusion of Zn<sup>2+</sup> facilitate uniform Zn deposition. Thus, cells with Zn foil serving as the anode achieve significantly enhanced performance. The Zn||Zn cells are able to operate continuously for over 700 h at 10 mA cm<sup>−2</sup> and 5 mAh cm<sup>−2</sup>. This work thus offers a simple and effective strategy to stabilize Zn anodes at relatively high current density and large areal capacity, facilitating the development of AZIBs for large-scale energy storage.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4139 - 4149"},"PeriodicalIF":2.5,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Flexible Electrode Formulation on Integrity and Conductivity 柔性电极配方对电极完整性和电导率的影响

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-27 DOI: 10.1007/s11664-026-12735-y

Rongrong Yuan, Yizhe Sun, Zhipeng Li, Xinhui Cui, Lu Tao, Xinqun Zhang

{"title":"Effect of Flexible Electrode Formulation on Integrity and Conductivity","authors":"Rongrong Yuan, Yizhe Sun, Zhipeng Li, Xinhui Cui, Lu Tao, Xinqun Zhang","doi":"10.1007/s11664-026-12735-y","DOIUrl":"10.1007/s11664-026-12735-y","url":null,"abstract":"<div><p>This study systematically investigated the effects of poly (3,4-ethylenedioxythiophene) (PEDOT), elastomers (polyvinyl alcohol, PVA; waterborne polyurethane, WPU), thickeners (SiO<sub>2</sub>; sodium carboxymethyl cellulose, CMC-Na), and polyvinylpyrrolidone (PVP) on the printability and electrical stability of silver-coated copper (Cu@Ag) powder-based inks on A4 paper and polyimide (PI) substrates. Six formulations were designed using the controlled variable method to evaluate film integrity, adhesion, pattern clarity, and conductivity under different bending conditions. Results demonstrated that PEDOT plays a crucial role in maintaining structural integrity and ensuring continuous conductive networks through its film-forming properties and interfacial interactions. Compared with WPU, PVA exhibited superior adaptability owing to its strong hydrophilicity, good compatibility with conductive fillers, and effective stress relaxation during drying. Glycerol improved printing performance and conductivity by regulating viscosity, promoting particle dispersion, and enhancing substrate compatibility. CMC-Na enhanced the wettability of PI substrates but caused wire drawing due to its high viscosity. SiO<sub>2</sub> provided moderate viscosity control, enabling excellent pattern clarity on A4 paper. PVP significantly improved bending resistance by forming flexible bridges between conductive particles, enhancing film toughness, and constructing redundant conductive networks. The optimized ink formulation exhibited excellent adhesion, good electrical conductivity, stability, and outstanding mechanical flexibility. This innovation provides a cost-effective solution with significant potential for large-scale applications in flexible electronics manufacturing.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4316 - 4323"},"PeriodicalIF":2.5,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Moringa oleifera Seed-Derived Cellulose Nanocrystals/Polypyrrole Composite for Advanced Symmetric Supercapacitor Applications 辣木籽衍生纤维素纳米晶体/聚吡咯复合材料在先进对称超级电容器中的应用

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-26 DOI: 10.1007/s11664-026-12731-2

P. Alwin Sinthiya, I. Johnson, H. Joy Prabu, A. Felix Sahayaraj, A. Joseph Sagaya Kennedy, J. Salamon

{"title":"Moringa oleifera Seed-Derived Cellulose Nanocrystals/Polypyrrole Composite for Advanced Symmetric Supercapacitor Applications","authors":"P. Alwin Sinthiya, I. Johnson, H. Joy Prabu, A. Felix Sahayaraj, A. Joseph Sagaya Kennedy, J. Salamon","doi":"10.1007/s11664-026-12731-2","DOIUrl":"10.1007/s11664-026-12731-2","url":null,"abstract":"<div><p>Cellulose, the most abundant natural biopolymer, is a highly attractive material for energy storage devices. In this work, cellulose nanocrystals (CNCs) were extracted from <i>Moringa oleifera</i> seeds, an agricultural waste product commonly found worldwide. A novel well-designed electrode was successfully fabricated using CNCs and polypyrrole (PPy). To synthesize the CNC/PPy composite, unaltered oxidative chemical polymerization of pyrrole was carried out using FeCl<sub>3</sub> as the oxidizing agent. To assess the morphology and structural characteristics of the prepared samples, advanced techniques including scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS) were employed, while the electrochemical performance of the composite was assessed using symmetric configuration. The device exhibited high specific capacitance of 318.73 F/g at a current density of 1 A/g, capacitance retention of 85.41% after 6000 cycles, energy density of 44.26 Wh/kg, and current density of 252.13 W/kg. The obtained results also revealed that CNC/PPy-based electrodes exhibited high performance as supercapacitors.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 5","pages":"4124 - 4138"},"PeriodicalIF":2.5,"publicationDate":"2026-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147636879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial and Mechanical Properties of Sputtered Cu-Co UBM after Multiple Reflow 多次回流后溅射Cu-Co合金的界面及力学性能

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-25 DOI: 10.1007/s11664-026-12674-8

Yinkai Huang, Yong Ma, Mingdong Bao, Yanjie Zhang

{"title":"Interfacial and Mechanical Properties of Sputtered Cu-Co UBM after Multiple Reflow","authors":"Yinkai Huang, Yong Ma, Mingdong Bao, Yanjie Zhang","doi":"10.1007/s11664-026-12674-8","DOIUrl":"10.1007/s11664-026-12674-8","url":null,"abstract":"<div><p>Cu-Co alloy films with different Co contents were prepared as under bump metallization (UBM) via magnetron sputtering by adjusting the current ratio of Cu and Co targets. The interfacial reactions and solder joint reliability between the UBM layer and Sn96.5-Ag3.0-Cu0.5 (SAC305) solder after one, three, and five reflow soldering cycles were investigated. The results indicated that a scallop-like Cu<sub>6</sub>Sn<sub>5</sub> phase forms at the SAC/Cu interface, while the introduction of the Cu-Co UBM transforms the interface into a layered structure containing the (Cu,Co)<sub>6</sub>Sn<sub>5</sub> phase. Additionally, the intermetallic compound (IMC) layer dissolution phenomenon was observed in the 0.5 A sample after one and three reflow cycles, as well as in the 0.5 A and 1 A samples after five reflow cycles. The IMC thickness exhibits a trend of first decreasing and then slowly increasing with increase in the Co target current, which is the combined result of the Co target current, reflow cycles, and Co content regulating the microstructure, atomic diffusion behavior, and nucleation process of the UBM layer. Shear tests showed that, except for the solder joints with the 0.5 A Co target current after five reflow cycles, where the coarsened (Cu,Co)<sub>6</sub>Sn<sub>5</sub> particles act as crack sources leading to reduced joint strength, the shear strength of all the other Cu-Co UBM solder joints was higher than that of SAC/Cu solder joints. In conclusion, a Co target current of 2 A (corresponding to a Co content of 21.88%) is the optimal process parameter for preparing Cu-Co films, at which the IMC thickness is stable and the solder joint shear strength is high.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 4","pages":"3893 - 3901"},"PeriodicalIF":2.5,"publicationDate":"2026-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Power-Density ZnWO4/Ni(OH)2 Electrode Materials for Hybrid Energy Storage Devices 用于混合储能装置的高功率密度ZnWO4/Ni(OH)2电极材料

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-24 DOI: 10.1007/s11664-026-12730-3

Ifrah Kiran, Yasir Javed, Khuram Ali, Muhammad Zahid

{"title":"High-Power-Density ZnWO4/Ni(OH)2 Electrode Materials for Hybrid Energy Storage Devices","authors":"Ifrah Kiran, Yasir Javed, Khuram Ali, Muhammad Zahid","doi":"10.1007/s11664-026-12730-3","DOIUrl":"10.1007/s11664-026-12730-3","url":null,"abstract":"<div><p>In this study, zinc tungstate (ZnWO<sub>4</sub>), nickel hydroxide (NiH), and their nanocomposites at different ratios (ZnWO<sub>4</sub>/NiH = 1:1, 2:1, and 1:2) were synthesized by the hydrothermal method and evaluated as an electrochemical energy storage electrode material. The successful preparation of pristine and composite materials was confirmed by x-ray diffraction, revealing that the ZnWO<sub>4</sub>/NiH (1:2) composite possessed the smallest crystallite size of 14.8 nm. The ZnWO<sub>4</sub>/NiH (1:2) composite showed ZnWO<sub>4</sub> nanorods present over the NiH nanosheets. Electrochemical analysis by a three-electrode system indicated specific capacity of 671.4 C/g for the ZnWO<sub>4</sub>/NiH (1:2) at a current density of 1 A/g. The charge storage behavior indicated that the electrochemical reaction was primarily diffusion-controlled. The designed ZnWO<sub>4</sub>/NiH (1:2) prototype device yielded specific capacity of 696 C/g, power density of 9955.6 W/kg, and energy density of 61.9 Wh/kg, with 70% cyclic stability and 98% coulombic efficiency for 5000 galvanostatic charge–discharge (GCD) cycles.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 4","pages":"3565 - 3580"},"PeriodicalIF":2.5,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism of Nitrogen Doping Concentration Drift in 4H-SiC Epitaxial Layers Induced by Ring Coating Thickness 环形涂层厚度诱导4H-SiC外延层中氮掺杂浓度漂移的机理

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-02-23 DOI: 10.1007/s11664-026-12708-1

Weiliang Zhong, Jiahui Wang, Jiulong Wang, Yong Yao, Haifeng Yang, Pengxiang Hou, Le Yu, Zheyang Li, Rui Jin

{"title":"Mechanism of Nitrogen Doping Concentration Drift in 4H-SiC Epitaxial Layers Induced by Ring Coating Thickness","authors":"Weiliang Zhong, Jiahui Wang, Jiulong Wang, Yong Yao, Haifeng Yang, Pengxiang Hou, Le Yu, Zheyang Li, Rui Jin","doi":"10.1007/s11664-026-12708-1","DOIUrl":"10.1007/s11664-026-12708-1","url":null,"abstract":"<div><p>Silicon carbide (SiC) is a promising third-generation semiconductor material with exceptional properties and significant potential for power semiconductor applications. The continued advancement of SiC MOSFET technology necessitates precise control over the doping concentration in SiC epitaxial layers, particularly for thick films used in high-voltage devices. In this study, we investigate the anomalous drift in doping concentration observed during the growth of 4H-SiC epitaxial layers, which is attributed to variations in the ring coating thickness. Experimental results demonstrate a clear correlation between ring coating thickness and dopant incorporation, with thicker coatings resulting in higher doping levels. To elucidate the underlying mechanism, numerical simulations were performed, revealing that variations in coating thickness modulate the surface distribution of the effective C/Si ratio and influence nitrogen incorporation. This study enhances the understanding of the mechanisms controlling doping concentration in SiC epitaxial growth and provides insights into improving doping uniformity in thick-film epitaxy.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 4","pages":"3936 - 3944"},"PeriodicalIF":2.5,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0