Article
Chemistry, Physical
Zhihao Huo, Yufei Zhang, Xun Han, Wenqiang Wu, Wenkai Yang, Xiandi Wang, Mengmeng Zhou, Caofeng Pan
Summary: ZnO has potential in optoelectronics and energy systems, but its wide bandgap and lack of p-type ZnO have limited its applications. A high-performance photodetector was successfully fabricated using a p-ZnO/Al2O3/n-Si structure, with excellent sensitivity, responsivity, and detectivity, indicating that an insulated Al2O3 layer can enhance carrier separation and collection efficiency. Quantum mechanical tunneling mechanisms and piezo-phototronic effects were utilized to optimize the photodetector's performance.
Article
Materials Science, Multidisciplinary
Shuo Tian, Bin Li, Yejing Dai, Zhong Lin Wang
Summary: Third-generation semiconductor materials, such as ZnO, GaN, and CdS, exhibit piezoelectricity and pyroelectricity, leading to the piezo-phototronic and pyro-phototronic effects. This review provides a systematic introduction to these effects and summarizes recent advances in their applications.
Article
Optics
Jiamei Sun, Chuncai Shan, Man Zhao, Dayong Jiang
Summary: A novel Al-doped (3 wt%) ZnO UV photodetector and ZnO/AZO heterojunction double-layer UV PD were prepared on a PET substrate using RF sputtering technology and conventional photolithography. The ZnO/AZO PD showed higher responsivity than the pure AZO PD, with a 1.13 fold increase in responsivity when the tensile variable epsilon was 0.16. These findings offer a new alternative for the preparation of flexible UV PDs with piezo-phototronic effect, which is cost-effective and environmentally sustainable.
Review
Chemistry, Multidisciplinary
Baoying Dai, Gill M. Biesold, Meng Zhang, Haiyang Zou, Yong Ding, Zhong Lin Wang, Zhiqun Lin
Summary: The piezo-phototronic effect, coined in 2010 as a coupling effect of piezoelectric, photoexcitation, and semiconducting properties, is a promising strategy to improve the quantum yield efficiencies of optoelectronic materials and devices. This effect has the potential to increase energy conversion efficiency and alleviate the energy shortage crisis. By controlling optoelectronic processes in photocatalysts, solar cells, photodetectors, and LEDs, the piezo-phototronic effect can play a crucial role in enhancing the performance of these devices through material and structural design, property characterization, and mechanism analysis.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Linjuan Guo, Xiu Liu, Ridong Cong, Linjie Gao, Kai Zhang, Lei Zhao, Xinzhan Wang, Rui-Ning Wang, Caofeng Pan, Zheng Yang
Summary: In this study, patterned 2D ferroelectric perovskite microbelt arrays were fabricated, leading to optimized performance of flexible photodetectors. These perovskite arrays exhibited excellent self-powered photodetection performance under 320 nm illumination, and the introduction of piezo-phototronic effect greatly enhanced their performance.
Article
Nanoscience & Nanotechnology
Xi Zhu, Yutong Wu, Guowei Li, Kun Zhang, Shuanglong Feng, Wenqiang Lu
Summary: Ti3C2Tx with 2D structure was prepared by hydrothermal method. A Ga2O3-Ti3C2Tx heterojunction was formed by van der Waals interaction between 1D nanowires and 2D nanosheets, which improved the performance of photodetectors by enhancing the transfer of photoelectrons.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Analytical
Xiang Liu, Fangpei Li, Wenbo Peng, Quanzhe Zhu, Yangshan Li, Guodong Zheng, Hongyang Tian, Yongning He
Summary: In this study, a Si/ZnO nanowire heterojunction FET model was established to investigate the piezotronic and piezo-phototronic effects. The results show that the channel current is affected by various parameters, such as the channel thickness, doping concentration, length, gate doping concentration, and gate voltage. The simulation results provide insights into the modulation of channel current in Zn-based HJFETs.
Article
Chemistry, Physical
Guofeng Hu, Hua An, Jianguo Xi, Junfeng Lu, Qilin Hua, Zhengchun Peng
Summary: This study presents a transparent and flexible photonic synapse based on a single ZnO micro/nanowire with modulation by piezophototronic effect. The results demonstrate that the photonic synapse can achieve various synaptic functions, and its synaptic weight change can be effectively modulated by applying compressive strains.
Review
Materials Science, Multidisciplinary
Vinod Panwar, Sukanta Nandi, Mandira Majumder, Abha Misra
Summary: This article discusses the efforts to develop self-powered photodetectors (PDs) using ZnO-based heterointerfaces for an improved pyro-phototronic effect. It focuses on the pyro-phototronic effect, exploring ZnO-based materials, doped ZnO-based materials, and ZnO-based materials with the plasmonic effect. The article concludes with a discussion on the challenges in the state-of-the-art technology and possible directions for future research.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Dong Jin Lee, Sung Ryong Ryu, Ganesan Mohan Kumar, Il-Ho Ahn, Jihoon Kyhm, Deuk Young Kim, Pugazhendi Ilanchezhiyan
Summary: This study reports the fabrication of a thin two-dimensional ZnO nanosheets flexible piezo-phototronic UV photodetector and discusses its photoresponse characteristics under UV illumination as well as the possibility of modulating photocurrent and responsivity through piezophototronic effect.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Xuexia Chen, Xun Yang, Qing Lou, Yuan Zhang, Yancheng Chen, Yacong Lu, Lin Dong, Chong-Xin Shan
Summary: This study developed a flexible photodetector based on MoS2/NiO heterojunction, using the F-P effect and piezo-phototronic effect to enhance the responsivity and external quantum efficiency of the device significantly. The research may provide a universal strategy for the design and performance optimization of 2D materials heterostructures for flexible optoelectronics.
Article
Chemistry, Multidisciplinary
Jiantao Wang, Yan Zhou, Zihan Wang, Boying Wang, Yongqiu Li, Banghao Wu, Chunlin Hao, Yaju Zhang, Haiwu Zheng
Summary: In this study, a flexible a-Ga2O3/ZnO heterojunction was fabricated, which exhibited a broadband photoresponse from deep ultraviolet to near-infrared and adjustable photocurrent response through the piezo-phototronic effect. The responsivity and detectivity of the heterojunction reached up to 12.19 A W-1 and 4.71 x 10(11) Jones, respectively, under a compressive strain of 0.164%, showing enhancements of 67.7% and 66.8% compared to the strain-free state. Furthermore, the heterojunction demonstrated tunable broadband photoresponse beyond the bandgap limit under bidirectional strain. The findings provide insights for the development of adjustable broadband photodetectors based on a-Ga2O3 films.
Article
Chemistry, Physical
Zheng Yang, Mingming Jiang, Linjuan Guo, Guofeng Hu, Yansong Gu, Jianguo Xi, Zhihao Huo, Fangtao Li, Shufang Wang, Caofeng Pan
Summary: This study demonstrates the enhancement of performance of P3HT-CsPbBr3 photodetectors by coupling LSPR and piezo-phototronic effects. The photocurrent, response speed and recovery speed were significantly increased when decorated with Au NCs and applied with compressive strain.
Article
Engineering, Electrical & Electronic
C. J. Keerthi, Sayan Halder, Sohel Siraj, Chanchal Chakraborty, Parikshit Sahatiya, Subhradeep Pal
Summary: In this letter, we present a MoSSe-based wideband photodetector (PD) synthesized hydrothermally, which exhibits excellent responsivity and sub-second response time. The device structure consists of MXene/MoSSe/Ag on a Si substrate, with MXene (Ti(3)C(2)Tx) and Ag serving as the cathode and anode contact of the PD, respectively. The Ti(3)C(2)Tx and MoSSe layers are deposited using the spin-coating method, while the Ag electrode is deposited through thermal evaporation. The fabricated PD shows outstanding photodetection capability from 350 nm to 950 nm, with a peak responsivity of 8.89 A.W-1 at 460 nm. The measured external quantum efficiency (EQE) and detectivity (D*) at 420 nm are 24.96% and 9.07 x 10(9) Jones, respectively. Additionally, the PD demonstrates good linearity performance up to 343 K, and the rise and fall times are approximately 0.12 sec and 0.13 sec, respectively.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Article
Physics, Applied
Xiao-ling Lu, Xiao-bin Guo, Feng-chao Su, Zheng Su, Wen-hai Qiu, Yan-ping Jiang, Wen-hua Li, Zhen-hua Tang, Xin-gui Tang
Summary: Al-doped ZnO (AZO) flexible UV photodetectors were fabricated on polyethylene terephthalate substrates using the radio frequency magnetron sputtering technique. The single-layer AZO photodetector exhibited high photocurrent/dark current ratio and excellent photoresponse performance under UV illumination. The piezo-phototronic effect was found to have an important influence on the performance optimization and modulation of the flexible UV photodetectors.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Chao Cai, Shaobo Han, Xiaotao Zhang, Jingxia Yu, Xia Xiang, Jack Yang, Liang Qiao, Xiaotao Zu, Yuanzheng Chen, Sean Li
Summary: The oxygen evolution reaction (OER) has been a focus of research in water electrolysis. In this study, the authors used single-atom Au doped Co-based nanosheets to evaluate the OER activity and the interaction between Co and Au. The results showed that Au-Co(OH)(2) nanosheets exhibited superior performance compared to state-of-the-art Co-based catalysts. The authors also provided new insights into the mechanisms of OER activity and the synthesis of efficient OER electrocatalysts.
Article
Physics, Multidisciplinary
Xia Zhao, Sheng-Hua Mei, Zhi Zheng, Yue Gao, Jiang-Zhi Chen, Yue-Gao Liu, Jian-Guo Sun, Yan Li, Jian-Hui Sun
Summary: This study investigates the phase transitions among different high-pressure polymorphic forms of CaCO3 and finds that the transitions are independent of the pressurizing rate. With increasing pressure, new phases begin to appear and coexist with the original phase.
Article
Chemistry, Multidisciplinary
Xie Fu, Xueli Wu, Guigang Huang, Wenquan Li, Shuai Kang, Liang Wang, Jinling Luo, Ziwei Pan, Wenqiang Lu
Summary: In this study, fusion bonding of incompatible polymers PP and PA6 was achieved by introducing an interlayer solder sheet (ISS) consisting of maleic anhydride-functionalized polypropylene (PP-g-MAH) and polyamide6 (PA6). The welding strength reached a high level, and the copolymer acted as an emulsifier to enhance the interfacial adhesion between PP and PA6.
Article
Chemistry, Physical
Si-Zhao Huang, Jia-Xing Guo, Bi-Yi Wang, Hong-Dong Yang, Qing-Yi Feng, Bo Li, Xia Xiang, Xiao-Tao Zu, Hong-Xiang Deng
Summary: A comprehensive study on the thermoelectric properties of the OsTe2 monolayer with a 1T' phase structure is presented. It is found that the monolayer has a high Seebeck coefficient and electrical conductivity, as well as a low lattice thermal conductivity. The optimal ZT value of the monolayer is significantly higher than typical TMD monolayers, suggesting its potential as an excellent thermoelectric material.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yutong Wu, Kun Zhang, Guowei Li, Qingshan Wang, Xie Fu, Liang Wang, Jinling Luo, Shuanglong Feng, Zhiyong Tao, Yaxian Fan, Wenqiang Lu
Summary: This study developed zinc gallium oxide nanowire bridge arrays through a simplified specific low-cost CVD process with Au arrays catalyst. The nanowire bridge arrays exhibited fast response time and exceptional performance, making them a promising candidate for solar-blind photodetectors.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Zhi Zheng, Mikhail Morgan, Pramathesh Maji, Xiang Xia, Xiaotao Zu, Weilie Zhou
Summary: In this study, CuO nanorod arrays were synthesized using a novel gas-phase cation exchange method with ZnO nanorod arrays as the template. The synthesized CuO nanorods exhibited a high photocurrent of 2.42 mA cm(-2) under solar irradiation, demonstrating their potential as efficient photoelectrochemical water splitting electrodes.
Article
Geochemistry & Geophysics
Yue Gao, Zhi Zheng, Xia Zhao, Yuegao Liu, Jiangzhi Chen, Yan Li, Mengjun Xiong, Xiaotao Zu, Shenghua Mei
Summary: Zircon provides a favorable pressure environment for ultra-high-pressure metamorphic minerals. The kinetics of the zircon-reidite phase transition at relatively low temperatures were investigated, and it was found that there is a significant kinetic effect and sufficient energy driving force for the transition. These findings are important for understanding the dynamics of crust exhumation.
Article
Materials Science, Multidisciplinary
Xie Fu, Xiaoya Yuan, Guowei Li, Yutong Wu, Hui Tong, Shuai Kang, Jinling Luo, Ziwei Pan, Wenqiang Lu
Summary: This study investigates the mechanical welding performance of thermoplastics (PP and PA6) using ultrasonic welding, and finds that weld time, weld load, and interlayer solder sheet components have significant effects on weld strength and morphology.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Ceramics
Wenfeng Sun, Xue Li, Bo Li, Caizheng Wang, Ying Zhao, Xiaotao Zu, Weilie Zhou, Xia Xiang
Summary: In this study, carbon quantum dots@Cs2NaInCl6 (CDs@CNC) composites were synthesized using a simple solution method. The resulting CDs@CNC composites retained the octahedral morphology of the original CNC host and the characteristic functional groups of the original CDs. These rare-earth-free CDs@CNC composites exhibited green light emission with good stability under UV irradiation, heat, and humidity. Furthermore, by combining CDs with ion-doped CNC, multicolor phosphor was obtained and white light emitting diode (WLED) devices were fabricated, with the ability to flexibly tune the cold-warm white fluorescence by changing the excitation wavelength. The combination of CDs and double perovskites offers a new approach for designing white light emission phosphors, which may lead to the development of next-generation high-quality lighting devices.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Multidisciplinary
Jinling Luo, Jiuxun Sun, Shuai Kang, Ziwei Pan, Xie Fu, Liang Wang, Wenqiang Lu
Summary: The fundamental I-V formula of an organic field effect transistor (OFET) is improved for better accuracy in calculations and derivations. Analytic I-V formulae are derived based on two different mobility models and successfully applied to three OFET devices. The results obtained from the reformulated analytic I-V formulae show excellent agreement with experimental data. Extracted parameters from the mobility model exhibit simple temperature dependence and linear relationship with temperature. These findings are highly valuable for practical applications and device simulations.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Si-Zhao Huang, Cheng-Ge Fang, Qing-Yi Feng, Bi-Yi Wang, Hong-Dong Yang, Bo Li, Xia Xiang, Xiao-Tao Zu, Hong-Xiang Deng
Summary: This study systematically explores the thermoelectric performance of the Janus ZrSSe monolayer under biaxial strain using first-principles approach and Boltzmann transport theory. The results demonstrate that the Janus ZrSSe monolayer has excellent stability and can be tuned by strain. The electronic structure and thermoelectric transport parameters can be significantly adjusted by biaxial strain. Under certain tensile strain, the monolayer exhibits high power factor and ZT values, making it a promising strain-tunable thermoelectric material.
Article
Materials Science, Ceramics
Zhi Zheng, Bingliang Liang, Jing Gao, Jianyi Ren, Zhiyong Liu, Xue Hou, Jianhui Sun, Shenghua Mei
Summary: In this study, the dielectric properties of (FeCoCrMnZn)3O4 under high pressure were systematically investigated. It was found that high pressure has a significant impact on the dielectric properties, even without observed phase transition. The electric resistance decreases exponentially with increasing pressure, while the relative permittivity decreases linearly. Additionally, the dielectric relaxation behavior of (FeCoCrMnZn)3O4 under high pressure was revealed.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yuxin Liu, Shuai Kang, Tinghua Li, Zhuofeng Hu, Yiwei Ren, Ziwei Pan, Xie Fu, Liang Wang, Shuanglong Feng, Jinling Luo, Lei Feng, Wenqiang Lu
Summary: The research demonstrates that photocatalytic CO2 reduction in a low vacuum can significantly improve the CH4 yield, showing long-term stability and good cycling performance under such conditions. Enhanced CO2 photoreduction in a low vacuum results from improved accumulation of photogenerated electrons, reduced Brownian movement of gas molecules, and hindered active site-blocking by gas molecules.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
