Journal of Electronic Materials最新文献_第2页

Design Optimization of Graphite Retort and Predictive Modeling of Optical Properties in Multi-crystalline Silicon for Solar Cell Applications 太阳能电池用多晶硅石墨炉设计优化及光学特性预测建模

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-09 DOI: 10.1007/s11664-026-12843-9

Mariyappan Raman, S. Arun, M. Srinivasan, Keerthivasan Thamotharan, R. M. Kaviya Sree, Vallidevi Krishnamurthy, Noritaka Usami

{"title":"Design Optimization of Graphite Retort and Predictive Modeling of Optical Properties in Multi-crystalline Silicon for Solar Cell Applications","authors":"Mariyappan Raman, S. Arun, M. Srinivasan, Keerthivasan Thamotharan, R. M. Kaviya Sree, Vallidevi Krishnamurthy, Noritaka Usami","doi":"10.1007/s11664-026-12843-9","DOIUrl":"10.1007/s11664-026-12843-9","url":null,"abstract":"<div><p>This work employs numerical simulation of the directional solidification (DS) process to investigate strategies for enhancing multi-crystalline silicon growth. The study examines the effects of modifying the graphite retort’s dimensions on impurity concentration, power consumption, melt–crystal interface properties, thermal stress, and dislocation density. Melt–crystal interface changes were analyzed at 25%, 50%, and 75% of the solidification phase. Among the tested conditions, multi-crystalline silicon ingots grown under the optimized case 3 configuration (retort width 25 mm) exhibited superior quality, with dislocation density reduced by above 10<sup>6</sup> cm<sup>−2</sup>, impurity concentration decreased by 10<sup>14</sup>–10<sup>15</sup> atoms/cm<sup>2</sup>, and reflectivity prediction accuracy of 12.76146%. Although case 3 incurred a slight increase in power consumption, the quality improvements make it suitable for semiconductor and solar cell applications. Machine learning (ML) analysis was applied as a tool to better monitor and control silicon quality rather than as the primary objective. To support this, a multi-crystalline silicon ingot was experimentally grown under case 3 conditions and sliced into wafers. Random forest demonstrated excellent performance in predicting minimal reflectivity, while XGBoost efficiently estimated average and maximum reflectivity, as well as minority carrier lifetime improvements, key parameters for industrial solar cell applications. Unlike previous studies focusing only on process optimization, this work uniquely integrates retort geometry optimization, experimental validation, and ML-based reflectivity prediction, providing a comprehensive framework for high-quality silicon ingot production.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5321 - 5340"},"PeriodicalIF":2.5,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872309","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

Fabrication of Low-Resistance Ru Films by Sputtering in Ar or Kr and Gas Backscattering Behavior Ar或Kr溅射制备低阻Ru薄膜及气体后向散射行为

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-08 DOI: 10.1007/s11664-026-12846-6

Yamato Yokoyama, Midori Kawamura, Takayuki Kiba

引用次数: 0

Perovskite Solar Cells Based on a Methoxy Dual-Sided Modification Strategy 基于甲氧基双面改性策略的钙钛矿太阳能电池

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-08 DOI: 10.1007/s11664-026-12851-9

Lanhang Zhang, Shihao Yu, Nan Zhang, Lizhong Wang, Kainan Dou

{"title":"Perovskite Solar Cells Based on a Methoxy Dual-Sided Modification Strategy","authors":"Lanhang Zhang, Shihao Yu, Nan Zhang, Lizhong Wang, Kainan Dou","doi":"10.1007/s11664-026-12851-9","DOIUrl":"10.1007/s11664-026-12851-9","url":null,"abstract":"<div><p>Polycrystalline perovskite films often feature surface defects that act as non-radiative recombination centers, thereby limiting photovoltaic efficiency and the long-term stability of perovskite solar cells. These defects disrupt effective charge extraction and transport, while simultaneously offering pathways for moisture and oxygen infiltration, which accelerates perovskite degradation. Consequently, developing efficient strategies to passivate these surface defects and mitigating non-radiative recombination remains a critical challenge in the field of perovskite photovoltaics. To address this issue, we propose a methoxy dual-sided modification strategy that employs two MeO-functionalized molecules: [2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl] phosphonic acid (MeO-2PACz) and 4-methoxy phenethylammonium bromide (4-MeO-PEABr), to selectively modify the bottom and top interfaces of the perovskite film, respectively. This “sandwich” architecture enables the methoxy groups to interact synergistically with perovskite grains from both sides. Experimental results demonstrate that the dual-sided modification not only effectively passivates surface defects and reduces non-radiative recombination centers but also enhances the crystalline quality and microstructure of the perovskite film. These combined improvements promote more efficient charge extraction and transport. As a result, the champion device modified with the methoxy dual-sided strategy achieves a power conversion efficiency of 22.63% and a fill factor of 79.21%. This synergistic interface engineering provides an insight into defect passivation and interfacial design for high-performance and stable perovskite solar cells.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5310 - 5320"},"PeriodicalIF":2.5,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872258","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 Generating the Clusters of Electrorheological Fluids Under Charged Flat Electrodes 带电扁平电极下电流变流体团簇产生机理研究

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-07 DOI: 10.1007/s11664-026-12821-1

Michiro Akaiwa

引用次数: 0

Electron Spin Resonance Gauging the Effect of Temperature on Magnetic Tunnel Junctions and its Constituents Thin-films 电子自旋共振测量温度对磁隧道结及其组成薄膜的影响

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-07 DOI: 10.1007/s11664-026-12841-x

Hayden Brown, Omari Kirkland, Pawan Tyagi

{"title":"Electron Spin Resonance Gauging the Effect of Temperature on Magnetic Tunnel Junctions and its Constituents Thin-films","authors":"Hayden Brown, Omari Kirkland, Pawan Tyagi","doi":"10.1007/s11664-026-12841-x","DOIUrl":"10.1007/s11664-026-12841-x","url":null,"abstract":"<div><p>Molecular spintronics integrates the unique electronic and magnetic properties of molecules with conventional magnetic materials to control spin-dependent phenomena at the nanoscale, offering promising routes to low-power, high-density data storage and quantum information processing. Incorporating molecular components into devices such as magnetic tunnel junctions (MTJs) has demonstrated enhanced magnetoresistance and spin filtering effects, highlighting the potential for improved device functionality and performance. There is a general concern about the impact of ambient oxygen on the MTJ ability to form successful molecular bridges. Also, MTJ-based molecular device fabrication requires a photolithography step that includes photoresist baking at 90 °C for few minutes. This work investigates electron spin resonance (ESR) in MTJs fabricated as 5-<i>μ</i>m pillar arrays to study the effect of temperature in ambient condition. The MTJs comprise a bottom ferromagnet stack of tantalum (Ta), cobalt (Co), nickel iron (NiFe), an aluminum oxide (AlOₓ) insulating barrier, and a top NiFe ferromagnet. Temperature-dependent ESR studies were also performed on the individual constituent materials and a complete MTJ at room temperature, 60 °C, 90 °C, and 120 °C. The analysis reveals that ferromagnetic materials maintain stable ESR spectra over the examined temperature range, while Ta and AlOx have very weak, but non-monotonic, resonance throughout the temperature range. Additionally, the resonance peaks of the individual materials differ from those of the complete MTJs, indicating that distinct coupling behaviors can be analyzed via ESR for MTJ-based molecular spintronics devices. These findings provide insights into the thermal robustness of Ta/Co/NiFe/AlO<sub>x</sub>/NiFe MTJ-based molecular spintronics devices.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5041 - 5048"},"PeriodicalIF":2.5,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872415","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

Hydrothermally Synthesized Calcium Multi-ferrite/Zinc Oxide Composite as High-Power Density Electrode Materials 水热合成多铁氧体钙/氧化锌复合材料的高功率密度电极材料

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-07 DOI: 10.1007/s11664-026-12839-5

Atiq ur Rehman, Tahir Yousaf, Aoun Abbas, Zahra Batool, Mukhtar Ahmad, Jureeporn Yuennan, Jack Arayro, Arslan Ashfaq, Shaimaa A. M. Abdelmohsen

{"title":"Hydrothermally Synthesized Calcium Multi-ferrite/Zinc Oxide Composite as High-Power Density Electrode Materials","authors":"Atiq ur Rehman, Tahir Yousaf, Aoun Abbas, Zahra Batool, Mukhtar Ahmad, Jureeporn Yuennan, Jack Arayro, Arslan Ashfaq, Shaimaa A. M. Abdelmohsen","doi":"10.1007/s11664-026-12839-5","DOIUrl":"10.1007/s11664-026-12839-5","url":null,"abstract":"<div><p>The growing demand for efficient, low-cost, and high-power energy storage devices has emphasized the limitations of conventional batteries in satisfying quick charge–discharge requirements. Supercapacitors have emerged as promising alternatives; however, their widespread application is still constrained by the lack of electrode materials that simultaneously deliver high energy density, power density, and long-term stability. In this study, hydrothermally produced CaFeO₃/ZnO composites and calcium multi-ferrite (CaFeO₃) were thoroughly studied as improved electrode materials for supercapacitor applications. Activated carbon was used as the negative electrode in the construction of an asymmetric supercapacitor device (CaFeO₃/ZnO 20%//AC), which has a specific capacity of 222.3 C g⁻<sup>1</sup>, an energy density of 26.2 Wh kg⁻<sup>1</sup>, and a power density of 5600 W kg⁻<sup>1</sup>. These findings underscore the potential of CaFeO₃/ZnO composites as efficient and scalable electrode materials, offering a viable pathway toward next-generation high-performance supercapacitors for practical energy storage applications.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5285 - 5298"},"PeriodicalIF":2.5,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872308","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

Simulation Optimization and Experimental Study on Laser Cleaning of TPT Adhesive from Solar Panels 太阳能电池板TPT胶粘剂激光清洗的仿真优化与实验研究

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-06 DOI: 10.1007/s11664-026-12842-w

Qianqian Yang, Wei Zhang, Ning Han, Dongge Li

{"title":"Simulation Optimization and Experimental Study on Laser Cleaning of TPT Adhesive from Solar Panels","authors":"Qianqian Yang, Wei Zhang, Ning Han, Dongge Li","doi":"10.1007/s11664-026-12842-w","DOIUrl":"10.1007/s11664-026-12842-w","url":null,"abstract":"<div><p>With the rapid development of the photovoltaic industry, the disposal and recycling of end-of-life photovoltaic modules have become an increasingly urgent global environmental issue. Laser cleaning is an effective and environmentally friendly technique for the recycling and reuse of silicon wafers (Si-wafers). Traditional physical and chemical cleaning methods suffer from low efficiency and tend to damage the substrate. In this paper, a multi-physics field coupling simulation model for laser cleaning of the Tedlar–PET–Tedlar (TPT) adhesive film on solar cell panels is established to simulate the laser cleaning process under different laser parameters and analyze the influence of laser action time on the temperature variation of the material. On this basis, experimental research on laser cleaning of TPT adhesive is carried for verifying the simulated findings, and an evaluation system for cleaning effect is established for quantitative assessment. On the basis of the comprehensive experimental results, the laser parameters for removing the TPT adhesive without damaging the substrate are determined as follows: laser power of 70 W, pulse width of 10 ns, repetition frequency of 30 kHz, spot radius of 80 μm, and scanning speed of 2400 mm/s. The research results provide reliable theoretical support and practical process guidance for the efficient and nondestructive recycling of waste photovoltaic modules. The proposed method exhibits broad prospects in the resource utilization of end-of-life solar panels.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5265 - 5272"},"PeriodicalIF":2.5,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872257","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

Comparative Study of CVD-Grown Graphene using Methane and Benzene as Precursors 以甲烷和苯为前驱体cvd生长石墨烯的比较研究

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-06 DOI: 10.1007/s11664-026-12835-9

Riya Sharma, Eesha Razia, Dhammika Rathnayaka, Prachanda Bhurtel, Kisaru Upananda, Bidur Dahal, Rameshwor Poudel, U. Kushan Wijewardena, Annika Kriisa, Rasanga Samaraweera, Ramesh G. Mani

{"title":"Comparative Study of CVD-Grown Graphene using Methane and Benzene as Precursors","authors":"Riya Sharma, Eesha Razia, Dhammika Rathnayaka, Prachanda Bhurtel, Kisaru Upananda, Bidur Dahal, Rameshwor Poudel, U. Kushan Wijewardena, Annika Kriisa, Rasanga Samaraweera, Ramesh G. Mani","doi":"10.1007/s11664-026-12835-9","DOIUrl":"10.1007/s11664-026-12835-9","url":null,"abstract":"<div><p>The scalable synthesis of high-quality monolayer graphene is critical for several applications in electronics. In this study, we investigate chemical vapor deposition (CVD) growth of graphene on copper foils using benzene as a liquid carbon precursor and compare it with methane-assisted growth. Benzene, with its aromatic ring structure, provides a lower decomposition barrier and a carbon supply closely aligned with the hexagonal graphene lattice, enabling continuous, defect-minimized monolayers at significantly lower temperatures 300–450°C compared to methane (~800–1000°C). Systematic variation of growth temperature reveals that benzene-grown graphene maintains structural integrity and uniformity at temperatures down to 450°C, whereas further reduction to 350°C increases defect density and reduces coverage. These results demonstrate that benzene-assisted CVD is a promising route for low-temperature, energy-efficient, and scalable graphene synthesis, providing high-quality graphene suitable for practical applications. The study also highlights the importance of precursor delivery to mitigate challenges such as condensation, polymerization, and toxicity, offering insights into precursor-dependent growth mechanisms.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5033 - 5040"},"PeriodicalIF":2.5,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872400","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

Electrospun Y2Ti2O7 Nanotubes Suitable for High Charging Current Applications for Lithium-Ion Batteries 电纺丝Y2Ti2O7纳米管适用于锂离子电池的高充电电流应用

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-05 DOI: 10.1007/s11664-026-12830-0

Shanshan Cong, Hongquan Yu, Baojiu Chen, Hong Zhao, Yong Zhang, Xiaoguang Xu

{"title":"Electrospun Y2Ti2O7 Nanotubes Suitable for High Charging Current Applications for Lithium-Ion Batteries","authors":"Shanshan Cong, Hongquan Yu, Baojiu Chen, Hong Zhao, Yong Zhang, Xiaoguang Xu","doi":"10.1007/s11664-026-12830-0","DOIUrl":"10.1007/s11664-026-12830-0","url":null,"abstract":"<div><p>Electrode materials exhibiting a low volume expansion rate during charge and discharge cycles are advantageous for lithium-ion battery applications, as they minimize the risk of lithium dendrite formation and enhance the cycle stability and safety performance of the battery. One-dimensional nanostructures offer several advantages over traditional powder materials in the field of electrochemistry, including enhanced charge transport and increased surface area interaction. In this work, one-dimensional Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanotubes were synthesized via a single-nozzle electrospinning technique at 800°C. These nanotubes feature an outer diameter of approximately 200 nm, an inner diameter close to 150 nm, and a thickness of roughly 30 nm. Their electrochemical properties were compared with those of Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanopowders for applications in lithium-ion batteries. When subjected to a high current density of 5000 mA/g, the Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanotubes and nanopowders demonstrate specific capacities of 271 mAh/g and 128 mAh/g, respectively, along with impressive cycling performance.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5258 - 5264"},"PeriodicalIF":2.5,"publicationDate":"2026-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872345","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 Different Transition Metal Ion Dopants on the Electrocatalytic Oxygen Evolution Activity of Ni(OH)2 不同过渡金属离子掺杂对Ni(OH)2电催化析氧活性的影响

IF 2.5 4区工程技术

Journal of Electronic Materials Pub Date : 2026-04-02 DOI: 10.1007/s11664-026-12840-y

Qiu Li, Tingting Zhang, Yu Wang, Xi Li, Congcong Nie, Changpeng Lv, Jingjing Song, Qihao Huang, Fang Wu

{"title":"Effect of Different Transition Metal Ion Dopants on the Electrocatalytic Oxygen Evolution Activity of Ni(OH)2","authors":"Qiu Li, Tingting Zhang, Yu Wang, Xi Li, Congcong Nie, Changpeng Lv, Jingjing Song, Qihao Huang, Fang Wu","doi":"10.1007/s11664-026-12840-y","DOIUrl":"10.1007/s11664-026-12840-y","url":null,"abstract":"<div><p>Ni(OH)<sub>2</sub> is considered as one of most promising oxygen evolution reaction (OER) catalysts owing to its low cost and earth abundance. Nevertheless, the low conductivity and poor intrinsic activity of Ni(OH)<sub>2</sub> seriously restricts its industrial application. Meanwhile, the relationship between the structure, OER activity of Ni(OH)<sub>2</sub>-based catalysts, and transition-metal dopants is still unclear. To meet above challenges, a series of Ni(OH)<sub>2</sub>–M (M = Fe, Al, Co, Cr) was prepared by a simple hydrothermal method. The experimental results confirmed that the incorporation of different metal elements into Ni(OH)<sub>2</sub> can not only alter the morphology and modulate electronic structure but also improve the intrinsic catalytic activity. Particularly, the Ni(OH)<sub>2</sub>–Fe exhibits the best OER activity, requiring 252 mV and 288 mV at 10 mA cm<sup>−2</sup> and 100 mA cm<sup>−2</sup>, with a Tafel slope of 39.1 mV dec<sup>−1</sup> and superior stability (50 mA cm<sup>−2</sup> for 30 h). This work provides a pathway to understand the relationship between structure, OER activity of Ni(OH)<sub>2</sub>-based catalysts, and incorporation of transition-metal elements, which facilitates the development of advanced OER electrocatalysts.</p></div>","PeriodicalId":626,"journal":{"name":"Journal of Electronic Materials","volume":"55 6","pages":"5249 - 5257"},"PeriodicalIF":2.5,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147872347","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