Japanese Journal of Applied Physics最新文献

Third harmonic-mediated amplification in TWPA 第三次谐波介导的TWPA放大

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2026-02-18 DOI: 10.1063/5.0297569

Emil Rizvanov, Samuel Kern, P. Neilinger, M. Grajcar

引用次数: 0

Laser-microstructured piezocapacitive system: A wireless platform for quantitative assessment of wound flatness 激光微结构压电容系统：创面平整度定量评估的无线平台

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2026-01-06 DOI: 10.1063/5.0301503

Yongqing Wang, Haoyu Li, Huicong Du, Haonan Li, Yuanbin Tang, Lei Yang, Qisheng Zhang, Feng Chen

{"title":"Laser-microstructured piezocapacitive system: A wireless platform for quantitative assessment of wound flatness","authors":"Yongqing Wang, Haoyu Li, Huicong Du, Haonan Li, Yuanbin Tang, Lei Yang, Qisheng Zhang, Feng Chen","doi":"10.1063/5.0301503","DOIUrl":"https://doi.org/10.1063/5.0301503","url":null,"abstract":"Postoperative wound management is a critical determinant of recovery in plastic surgery and burn care, where accurate assessment of wound flatness plays a central role. Yet, current evaluation remains largely subjective, relying on clinical experience rather than quantitative metrics. Here, we present a laser-microstructured piezocapacitive system: a compact, fully integrated wireless platform that is encapsulated in soft, biocompatible materials for the high-resolution, real-time monitoring of wound topography. The device incorporates a tetherless, femtosecond-laser-fabricated microstructured sensor that achieves submillimeter resolution (&lt;0.1 mm) and maintains stable performance over 10 000 operation cycles. Wireless interfacing with mobile clients or server networks enables continuous evaluation of sutured wound morphology and healing progression. This platform provides objective, quantitative data on wound flatness and mechanical profiles, offering actionable metrics to guide surgical decision-making and postoperative care. By bridging a critical gap in precision wound management, this technology holds significant potential for improving clinical outcomes and standardizing quality assessment in surgical practice.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"139 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/5.0301503/20859094/014501_1_5.0301503.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance solar-blind optoelectronic synaptic device based on N-doped Ga2O3 nanowire network for neuromorphic computing 基于n掺杂Ga2O3纳米线网络的高性能太阳盲光电突触器件用于神经形态计算

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-12-09 DOI: 10.1063/5.0307144

Fan Wu, Xuehua Zhang, Kai Chen, Jinsong Liu, Chenhui Niu, Haizheng Hu, Shunli Wang

{"title":"High-performance solar-blind optoelectronic synaptic device based on N-doped Ga2O3 nanowire network for neuromorphic computing","authors":"Fan Wu, Xuehua Zhang, Kai Chen, Jinsong Liu, Chenhui Niu, Haizheng Hu, Shunli Wang","doi":"10.1063/5.0307144","DOIUrl":"https://doi.org/10.1063/5.0307144","url":null,"abstract":"Optoelectronic synapses use optical signals as modulation inputs and offer advantages such as low-power consumption, non-contact operation, and high parallelism. However, devices operating in the visible and near-infrared regions are susceptible to ambient light interference, leading to signal distortion and high background noise. In contrast, optoelectronic synaptic devices working in a solar-blind region are impervious to external ambient interference, enabling them to achieve stable and high-fidelity signal transmission effectively. Ga2O3 as a wide bandgap with inherent oxygen-vacancy defects has strong deep-ultraviolet light sensitivity, making it an ideal material for solar-blind optoelectronic synapses. Here, high-performance solar-blind synaptic devices were prepared using nanowire network interfacial effects and nitrogen doping to modulate oxygen vacancies. Notably, the paired-pulse facilitation index increased by approximately 1.2 fold after doping. In handwritten digit recognition experiments, the recognition accuracy of the doped device exceeded 90%, representing an improvement of nearly 15% compared to the undoped counterpart. Furthermore, leveraging its enhanced light perception and strong memory characteristics, a precise optical encryption communication scheme with strong anti-interference capability was also designed. The optoelectronic synaptic devices based on element regulated Ga2O3 nanowire network provide a new way for the development of the next generation of high-performance solar-blind optoelectronic neuromorphic systems.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/5.0307144/20832295/223106_1_5.0307144.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tuning pyrolyzing temperature to switch electrorheological effect from negative to positive in MIL-125(Ti)-derived carbon/TiO2 composite particles: Crucial role of interfacial polarization 调整热解温度使MIL-125（Ti）衍生碳/TiO2复合颗粒的电流变效应由负向正：界面极化的关键作用

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-12-02 DOI: 10.1063/5.0297458

Wuyang Nie, Ruijing Ma, Libing Duan, Xiaoru Zhao, Liqin Xiang, Haoming Pang, Jianbo Yin

{"title":"Tuning pyrolyzing temperature to switch electrorheological effect from negative to positive in MIL-125(Ti)-derived carbon/TiO2 composite particles: Crucial role of interfacial polarization","authors":"Wuyang Nie, Ruijing Ma, Libing Duan, Xiaoru Zhao, Liqin Xiang, Haoming Pang, Jianbo Yin","doi":"10.1063/5.0297458","DOIUrl":"https://doi.org/10.1063/5.0297458","url":null,"abstract":"In this study, carbon/TiO2 composite particles were prepared by pyrolyzing metal-organic framework (MOF) particles. The structure and conductivity of composite particles was characterized and the electrorheological (ER) effect of composite particles dispersed in silicone oil was measured under electric fields. It is interesting that the composite particle suspensions exhibit a tunable electro-response from negative to positive ER effect depending on pyrolysis temperatures. The suspension containing particles produced at 400 °C shows abnormal negative ER effect, which can be explained by the conduction model because 400 °C-pyrolysis destroys the bonds between organic linkers and Ti—O clusters to yield composite with lower conductivity than silicone oil. However, the suspension containing particles produced at 440 °C still shows negative ER effect, which cannot be explained by the conduction model because the conductivity of composite exceeds that of silicone oil. Through microscopic observation and dielectric spectra analysis, we clarified that the absence of available interfacial polarization in the suspensions of particles produced at lower pyrolysis temperature than 440 °C is the real reason of negative ER effect. Increasing pyrolysis temperatures to 480 and 520 °C improves the carbonization level and conductivity of composites, leading to large interfacial polarization and positive ER effect of corresponding suspensions. The suspension containing particles produced at 520 °C exhibits the optimal positive ER effect. This work demonstrates the crucial role of interfacial polarization in determining positive or negative ER effect through using MOF-derived carbonaceous composites with tunable structure and electric properties.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 21","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gate tuning of cellulose nanofibers-gated in-plane-gate IGZO transistors for humidity sensing 用于湿度传感的纤维素纳米纤维门控平面内栅IGZO晶体管的栅极调谐

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-11-25 DOI: 10.35848/1347-4065/ae2407

Hao Yang, Lin Zha, Feng Shao, Shaoqing Xiao, Xi Wan, Xiaofeng Gu

{"title":"Gate tuning of cellulose nanofibers-gated in-plane-gate IGZO transistors for humidity sensing","authors":"Hao Yang, Lin Zha, Feng Shao, Shaoqing Xiao, Xi Wan, Xiaofeng Gu","doi":"10.35848/1347-4065/ae2407","DOIUrl":"https://doi.org/10.35848/1347-4065/ae2407","url":null,"abstract":"Abstract Electrolyte-gated transistors (EGTs) represent a highly intriguing device platform for intelligent bio- and chemical sensing. To enable effective humidity sensing with cellulose nanofibers-gated in-plane-gate indium gallium zinc oxide transistors. This work adopted three synergistic methods to tune the gate controllability: ion doping of the solid electrolyte, gate electrode restructuring, and application of pulsed gate voltages. Cellulose nanofibers gate electrolyte was doped with LiClO 4 to increase ionic conductivity and electric double layer capacitance. A C-shaped in-plane-gate design expanded the electrolyte region between the gate and channel, enabling a wider electric field distribution for improved gate control. With pulsed gate voltage operation, duty ratio adjustment revealed a sharply enhanced humidity response compared to quasi-static operation, achieving a higher current response ratio of 69.2 between 80% and 20% relative humidity. These results demonstrate that by combining material, structural, and signal engineering, the potential of in-plane-gate EGTs for humidity sensing is unlocked for humidity sensing applications.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"64 12","pages":"126505-126505"},"PeriodicalIF":0.0,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147382086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensitive detection of glucose enantiomers using open-ring resonator-based metamaterial sensor 基于开环谐振器的超材料传感器对葡萄糖对映体的灵敏检测

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-10-22 DOI: 10.1063/5.0293662

Ruichen Chao, Xujun Xu, Yujiao Li, Xinli Kuang, Jianjun Liu, Yong Du

{"title":"Sensitive detection of glucose enantiomers using open-ring resonator-based metamaterial sensor","authors":"Ruichen Chao, Xujun Xu, Yujiao Li, Xinli Kuang, Jianjun Liu, Yong Du","doi":"10.1063/5.0293662","DOIUrl":"https://doi.org/10.1063/5.0293662","url":null,"abstract":"Glucose, as the core substance of energy metabolism in living organisms, exhibits significant differences in bioavailability, metabolic pathways, and physiological functions between its d- and l-enantiomers. Specifically, d-glucose serves as a key substrate in the cellular tricarboxylic acid cycle, while the l-enantiomer cannot be metabolized due to the absence of glucokinase, making it a non-caloric, diabetic friendly sweetener. The stark contrast in their bioactivity and application scenarios highlights the critical importance of developing rapid, label-free, and highly sensitive enantiomer discrimination technology for precision medical diagnostics and functional food development. This study innovatively proposes and validates a terahertz metamaterial sensor based on an open-ring resonator for precise identification of glucose enantiomers. Operating under a TE (transverse-electric) mode, the sensor demonstrates dual-resonance responses at 0.409 and 0.652 THz. Through full-wave simulation optimization using CST Microwave Studio®, the device was fabricated via UV photolithography and characterized with a terahertz frequency-domain spectroscopy system. Simulation results predict a high refractive index sensitivity of up to 222.3 GHz/RIU, while experimental measurements demonstrate the sensor’s capability for specific discrimination between d-glucose and l-glucose at concentrations as low as 2 mmol/l. At 8 mmol/l glucose concentration, the transmission peak intensity increase for l-glucose was 1.96 times greater than that of d-glucose. This sensor provides an innovative tool for real-time blood glucose monitoring and personalized diabetes treatment, demonstrating the unique technical advantages of terahertz metamaterials in the field of biological chiral recognition.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The effects of Ag and Au nanoparticles for resonant excitations on the spectral enhancement of nanoparticle enhanced laser-induced breakdown spectroscopy 银和金纳米粒子共振激发对纳米粒子增强激光诱导击穿光谱增强的影响

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-10-03 DOI: 10.1063/5.0290088

Yuan Lin, Xun Gao, Qiuyun Wang, Peng Lang, Jiyan Dai, Hailong Yu, Yinping Dou, Jingquan Lin

{"title":"The effects of Ag and Au nanoparticles for resonant excitations on the spectral enhancement of nanoparticle enhanced laser-induced breakdown spectroscopy","authors":"Yuan Lin, Xun Gao, Qiuyun Wang, Peng Lang, Jiyan Dai, Hailong Yu, Yinping Dou, Jingquan Lin","doi":"10.1063/5.0290088","DOIUrl":"https://doi.org/10.1063/5.0290088","url":null,"abstract":"We have investigated the spectral emission of Cu in an aqueous solution with Ag and Au nanoparticle (NP) enhanced laser-induced breakdown spectroscopy. Solutions of metal NPs and CuSO4 are prepared through the liquid–solid conversion process. Optical responses of Ag and Au NPs are simulated by a numerical calculation of the Maxwell equation using Yee unit cell, i.e., finite difference time domain. Absorption spectra of Ag and Au NPs are calculated, showing the near and out of resonant modes of localized surface plasmon (LSP) with 532 and 1064 nm light, respectively. A stronger field enhancement factor for Ag NPs can be achieved with 532 nm light due to the near resonant excitation of LSP and inter-band transition of electrons in Au. Strongest element emission can be achieved with Ag NPs under the illumination of 532 nm laser pulse, consistent with the simulated electric field enhancement factor. The spectral intensity can be improved by one magnitude of order with the resonant excitation of LSP for Ag NPs than that without metal NPs. The enhanced spectral emission is mainly caused by massive electrons emitted through field emission with 532 nm laser pulse and multiphoton photoemission process with 1064 nm laser pulse, which is judged by the Keldysh parameter. Electron densities in the regime of 2 × 1017 cm−3 are calculated by Stark broadening at Hα-line 656.27 nm with all the substrates. These findings reveal the relationship between the resonant mode and spectral enhancement, which is of great value for trace element detection in liquid.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Irreversible expansion and distortion relief of bismuth ruthenate under high temperature and high pressure 高温高压下钌酸铋的不可逆膨胀和畸变解除

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-10-01 DOI: 10.1063/5.0288809

Xinmiao Gai, Cun You, Yu-Qi Gao, Z.W. Li, Hetian Liu, Wei Zhao, Pinwen Zhu, Xin Wang

{"title":"Irreversible expansion and distortion relief of bismuth ruthenate under high temperature and high pressure","authors":"Xinmiao Gai, Cun You, Yu-Qi Gao, Z.W. Li, Hetian Liu, Wei Zhao, Pinwen Zhu, Xin Wang","doi":"10.1063/5.0288809","DOIUrl":"https://doi.org/10.1063/5.0288809","url":null,"abstract":"Bi2Ru2O7 is a weak metal pyrochlore with good conductivity. Due to the static disordered displacement caused by the Bi 6s lone pair, which distorts the [RuO6] octahedron, the t2g orbitals split into e'g and a1g states. This results in the opening of a bandgap at the Fermi level, leading to reduced electrical conductivity in the sample compared to its standard structure. The electrical resistivity, temperature difference, and Seebeck coefficient of the sample were synchronously observed using high-temperature and high-pressure in situ testing assembly. The Seebeck coefficient and temperature discontinuity of the sample occurred at 4.0 GPa at 878.9 K, and the final value of resistivity showed a significant decrease after returning to ambient temperature at 4.0 GPa, but remained within the range of 10−4 Ω m. The x-ray diffraction (XRD) analysis after high-temperature and high-pressure treatment confirmed that the sample underwent irreversible expansion at 4.0 GPa at 878.9 K. In situ high-temperature XRD indicates that irreversible expansion of the sample cannot be achieved by high-temperature treatment at ambient pressure. High-temperature and high-pressure treatment effectively expands the atomic spacing, which can alleviate the displacement of shared oxygen in [RuO6] octahedra caused by the Bi 6s lone pair, reduce octahedral distortion, and thus improve the semi-metallic bandgap caused by static disordered displacement, which provides a new idea for improving the performance of bismuth ruthenate and its composite electrode materials. In addition, expansion is beneficial for the replacement process of the sample as a matrix material, indicating its potential application value in the field of nuclear waste solidification and as a doped matrix material.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/5.0288809/20723830/135901_1_5.0288809.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Constructing epoxy polymer with significantly increased dielectric strength through molecular design by introducing deep trap 通过引入深阱的分子设计，构建了显著提高介电强度的环氧聚合物

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-09-03 DOI: 10.1063/5.0283922

Yang Feng, Peiyan Liu, Yi Qiao, Bin Zhou, Kai Shang, Mingru Li, Shengtao Li

{"title":"Constructing epoxy polymer with significantly increased dielectric strength through molecular design by introducing deep trap","authors":"Yang Feng, Peiyan Liu, Yi Qiao, Bin Zhou, Kai Shang, Mingru Li, Shengtao Li","doi":"10.1063/5.0283922","DOIUrl":"https://doi.org/10.1063/5.0283922","url":null,"abstract":"The demand for epoxy resin (EP) with superior dielectric strength is critical in advanced power equipment. Here, we aimed to construct EP with enhanced dielectric strength via molecular design. Simulations indicated that substituting the CH3 groups in bisphenol A EP with CF3 significantly improved charge transfer, which mostly led to an enhanced trap level and dielectric strength. Guided by simulations, we developed a synthetic pathway to produce fluorinated EP (FEP), which was subsequently validated that the molecular structure of the synthesized polymer aligned with expectations. Compared to traditional bisphenol A EP, a deeper trap was induced by the CF3 group, and the dielectric strength improved from 366.39 to 483.62 kV/mm, representing an increase of over 30%. We elucidated that the substantial enhancement in the breakdown performance of FEP can be attributed to the trapping effect of these traps on charge migration. The increased trap levels effectively inhibit the migration of carriers, thereby reducing both conductivity and carrier mobility, resulting in a higher threshold for discharge initiation. Our research holds significant implications to construct EP polymers tailored for advanced power equipment through strategic molecular design.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/5.0283922/20678635/095103_1_5.0283922.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Influence of buffer layer on the performance of ZnO film based photoconductive detectors 缓冲层对ZnO薄膜光导探测器性能的影响

4区物理与天体物理

Japanese Journal of Applied Physics Pub Date : 2025-08-01 DOI: 10.1063/5.0273458

Pyong Hwa Hong, Leyao Wu, Xinnan Shi, Peng Hu, Haibo Fan, Feng Teng

{"title":"Influence of buffer layer on the performance of ZnO film based photoconductive detectors","authors":"Pyong Hwa Hong, Leyao Wu, Xinnan Shi, Peng Hu, Haibo Fan, Feng Teng","doi":"10.1063/5.0273458","DOIUrl":"https://doi.org/10.1063/5.0273458","url":null,"abstract":"Photoconductive detectors based on zinc oxide (ZnO) thin films have garnered significant attention in optoelectronic applications owing to their simplified device architecture, well-established fabrication processes, and scalability for industrial production. The buffer layer, as a factor affecting device performance, also needs to be investigated. This study systematically investigates the critical role of the buffer layer in modulating the performance metrics of ZnO film photodetectors. Through the comparative analysis of devices fabricated on glass substrates with distinct buffer configurations (CuO monolayer vs SiO2/CuO bilayer), we reveal the substantial modulation of photoresponse characteristics. The ZnO/CuO heterostructure exhibits a suppressed dark current (reduced by 20%) and photocurrent (reduced by 67%) relative to the reference device (ZnO film photodetector or PD), accompanied by prolonged response times (τrise = 3.3 s, τdecay = 15.4 s). Introducing an SiO2 insulated layer (200 nm) can lead to charge redistribution in the CuO layer and ZnO layer, achieving an enhanced on/off ratio (Iphoto/Idark = 1.1 × 102) with accelerated decay kinetics (τdecay = 10.5 s). These performance modifications originate from the synergistic effects of type-II band alignment at the ZnO/CuO interface and interfacial capacitance modulation. This work establishes a quantitative framework for failure mode analysis in oxide-based optoelectronics, providing a critical insight for device optimization strategies.","PeriodicalId":14741,"journal":{"name":"Japanese Journal of Applied Physics","volume":"138 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15