Article
Chemistry, Physical
Mustafa A. Yildirim, Kasif Teker
Summary: This paper presents a silicon carbide single nanowire ultraviolet photodetector with high sensitivity and responsivity, offering unique opportunities in new generation, flexible, self-powered nanoscale optoelectronics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Haizheng Hu, Lipeng Deng, YuChen Zhu, Chao Wu, Daoyou Guo, Shunli Wang
Summary: Gallium oxide (Ga2O3) semiconductor with a wide bandgap of 4.9 eV has garnered increasing interest in the optoelectronic field. However, the fabrication of Ga2O3 pn junction remains challenging due to the infancy of p-Ga2O3 doping technology. In this study, a solar-blind photodetector was developed using vertical alpha/beta-Ga2O3 junction nanorod arrays (NRAs) and a Ti3C2-Ag NWs top electrode, which exhibited improved conductivity, optical transparency, and excellent photo-electric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Nonglen Meitei, Naorem Khelchand Singh
Summary: A self-powered photodetector utilizing a silver nano particle-decorated gadolinium oxide nanorod was successfully fabricated using the glancing angle deposition technique. The device exhibited a low dark current of 0.73 nA and a stable switching response with a rise/fall time of 0.18/0.17 s at 0 V. Additionally, it showed good responsivity (11.8 mA/W), high detectivity (7.63 x 1011 Jones), and low noise equivalent power (3.67 x 10-12 W) at 0 V.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jie Zhang, Fengjing Liu, Dong Liu, Yanxue Yin, Mingxu Wang, Zixu Sa, Li Sun, Xiaoxin Zheng, Xinming Zhuang, Zengtao Lv, Wenxiang Mu, Zhitai Jia, Yang Tan, Feng Chen, Zai-xing Yang
Summary: The study investigates the photodetection performance of thin amorphous Ga2O3 nanosheet, which has been widely used as dielectric and passivation materials. By peeling off from the Ga solid-melt surface, the amorphous Ga2O3 nanosheet is confirmed to have an amorphous characteristic through selected area electron diffraction and X-ray diffraction. However, due to limited absorption ability and abundant defect states, the amorphous Ga2O3 nanosheet shows low photocurrent and slow response time even at a bias voltage. To enhance the photodetection performance, PbI2 nanosheet is grown on the surface of the amorphous Ga2O3 nanosheet, forming a Ga2O3/PbI2 heterojunction photodetector. The heterojunction photodetector exhibits larger photocurrent (1.6 nA) and faster response times (2 ms rise time and 3 ms decay time) even at a zero bias voltage, and it also shows excellent self-powered photoresponse characteristic and mechanical flexibility when configured into a flexible photodetector. This work provides a pathway for the development of high-performance flexible optoelectronic devices.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Physical
Avijit Dalal, Dip Prakash Samajdar, Aniruddha Mondal
Summary: This study demonstrates an efficient self-powered photodetector based on TiO2 nanowires with a MgO capping layer. The device exhibits high sensitivity under deep ultraviolet illumination and has low leakage current and high photoconductive gain.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Ribwar Ahmadi, Amin Abnavi, Hamidreza Ghanbari, Hadi Mohandes, Mohammad Reza Mohammadzadeh, Thushani De Silva, Amirhossein Hasani, Mirette Fawzy, Fahmid Kabir, Michael M. Adachi
Summary: The study introduces a photodetector based on the coupling of pyroelectric and photoelectric effects in a silicon-water heterojunction, leading to high responsivity and specific detectivity suitable for liquid-compatible applications with polarization sensitivity.
Article
Chemistry, Physical
Dan-Liang Wen, Peng Huang, Bo-Yuan Li, Yu Qiu, Yi-Lin Wang, Xin-Ran Zhang, Hai-Tao Deng, Xiao-Sheng Zhang
Summary: The article introduces a flexible multifunctional sensor based on a silk fibroin/silver nanowire composite film, which can perform pressure and temperature sensing, as well as finger proximity detection and human breathing monitoring. A self-powered wireless multi-sensing microsystem is also constructed using the sensor, enabling continuous self-powered work and real-time data transmission to a mobile phone. These features make it highly valuable in the field of smart IoT.
Article
Engineering, Electrical & Electronic
Shunli Wang, Chao Wu, Fengmin Wu, Fabi Zhang, Aiping Liu, Nie Zhao, Daoyou Guo
Summary: Wearable photodetectors have attracted great attention for their potential applications in smart monitoring, and self-powered technology is the future trend. This study successfully constructed an Ag NWs/a-GaO Schottky junction, demonstrating a DUV photodetector with excellent photoelectric performance and mechanical properties.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Engineering, Electrical & Electronic
Sabah M. Mohammad, Suvindraj Rajamanickam, Z. Hassan, Mundzir Abdullah, A. R. Shafiqa, Abdulsalam Abuelsamen
Summary: The study successfully synthesized Ag NPs/ZnO NRs nanorods array using a simple and cost-effective hydrothermal technique combined with the photo-deposition method for the fabrication of self-power MSM UV photodetector device. The presence of Ag NPs was confirmed by notable changes in the morphological surface of ZnO NRs after the photo-deposition process. The photodetector with Ag NPs showed significantly enhanced conductivity and high performance, with a responsivity value of 42.79 A W-1 and an EQE of 13,436.06% at 15 V bias voltage.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Optics
Jianya Zhang, Min Jiang, Min Zhou, Wenxian Yang, Yukun Zhao, Shulong Lu
Summary: This work demonstrates a self-powered photoelectrochemical photodetector in seawater based on (In,Ga)N/GaN core-shell heterojunction nanowires. Compared to pure water, the PD in seawater has a much faster response speed due to the upward and downward overshooting features of current. The main factors affecting the PD behavior in seawater are proposed to be the instantaneous temperature gradient, carrier accumulation and elimination on the semiconductor/electrolyte interfaces, as well as the Na+ and Cl- ions.
Article
Optics
Jianya Zhang, Min Jiang, Min Zhou, Wenxian Yang, Yukun Zhao, Shulong Lu
Summary: Due to the requirements of oceanography exploration, self-powered photodetectors with low-power consumption are crucial. This study successfully demonstrates a self-powered photoelectrochemical (PEC) photodetector in seawater based on (In,Ga)N/GaN core-shell heterojunction nanowires. The faster response speed is attributed to the upward and downward overshooting features of current in seawater. The analysis shows that Na+ and Cl- ions enhance the conductivity and accelerate the oxidation-reduction reaction, and they are proposed as the main factors influencing the behavior of the photodetector in seawater.
Article
Chemistry, Physical
Thanh Tai Nguyen, Malkeshkumar Patel, Joondong Kim
Summary: Broadband transparent photodetectors are achieved through the formation of a metal oxide heterojunction, demonstrating high efficiency and stability for self-powered operations. With a fast response time and high responsivity, the transparent NiO/TiO2 photodetector is suitable for transparent optoelectronics applications.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Chao Wu, Fengmin Wu, Haizheng Hu, Shunli Wang, Aiping Liu, Daoyou Guo
Summary: This review summarizes the recent research progress on self-powered solar-blind photodetectors based on Ga2O3. The detectors are classified into different types, and the fundamental properties of Ga2O3, the basic working principles of self-powered photodetectors, and the device processing developments are summarized. Finally, conclusions regarding recent advances, remaining challenges, and prospects are presented and discussed.
MATERIALS TODAY PHYSICS
(2022)
Article
Optics
Shun-Xin Li, Jia-Cheng Feng, Yang An, Hong Xia
Summary: High-quality perovskite microwire crystal heterojunction arrays were obtained using regioselective ion exchange, and photodetectors with superior responsivity and polarization sensitivity were fabricated.
PHOTONICS RESEARCH
(2023)
Article
Engineering, Environmental
Yajie Han, Shujie Jiao, Jiangcheng Jing, Lei Chen, Zehao Shi, Ping Rong, Dongbo Wang, Shiyong Gao, Wen He, Jinzhong Wang
Summary: The trend in modern electronics and optoelectronics is towards highly integrated, comprehensive, and miniaturized devices. Vertical configuration offers higher integration density and carrier transmission speed, leading to enhanced optoelectronic device performance. In this work, a vertical heterojunction photodetector was developed, combining different materials to achieve broad-spectrum detection and fast response time. The device demonstrated self-powered characteristics and high performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
W. Wang, C. Hu, F. N. Li, S. Y. Li, Z. C. Liu, F. Wang, J. Fu, H. X. Wang
DIAMOND AND RELATED MATERIALS
(2015)
Article
Nanoscience & Nanotechnology
W. Wang, C. Hu, S. Y. Li, F. N. Li, Z. C. Liu, F. Wang, J. Fu, H. X. Wang
JOURNAL OF NANOMATERIALS
(2015)
Article
Physics, Applied
Zhangcheng Liu, Jin-Ping Ao, Fengnan Li, Wei Wang, Jingjing Wang, Jingwen Zhang, Hong-Xing Wang
APPLIED PHYSICS LETTERS
(2016)
Article
Chemistry, Physical
F. N. Li, J. W. Liu, J. W. Zhang, X. L. Wang, W. Wang, Z. C. Liu, H. X. Wang
APPLIED SURFACE SCIENCE
(2016)
Article
Materials Science, Multidisciplinary
Fengnan Li, Jingwen Zhang, Xiaoliang Wang, Zhangcheng Liu, Wei Wang, Shuoye Li, Hong-Xing Wang
DIAMOND AND RELATED MATERIALS
(2016)
Article
Physics, Condensed Matter
F. N. Li, J. W. Zhang, X. L. Wang, Z. C. Liu, W. Wang, J. Fu, T. F. Zhu, H. X. Wang
SUPERLATTICES AND MICROSTRUCTURES
(2016)
Article
Materials Science, Multidisciplinary
Zhangcheng Liu, Jin-Ping Ao, Fengnan Li, Wei Wang, Jingjing Wang, Jingwen Zhang, Hong-Xing Wang
Article
Optics
Tian-Fei Zhu, Zongchen Liu, Zhangcheng Liu, Fengnan Li, Minghui Zhang, Wei Wang, Feng Wen, Jingjing Wang, RenAn Bu, JingWen Zhang, Hong-Xing Wang
Article
Crystallography
Fengnan Li, Jingwen Zhang, Xiaoliang Wang, Minghui Zhang, Hongxing Wang
Article
Materials Science, Multidisciplinary
Fengnan Li, Jingwen Zhang, Xiaoliang Wang, Minghui Zhang, Hongxing Wang
Article
Chemistry, Physical
D. Zhao, F. N. Li, Z. C. Liu, X. D. Chen, Y. F. Wang, G. Q. Shao, T. F. Zhu, M. H. Zhang, J. W. Zhang, J. J. Wang, W. Wang, H. X. Wang
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Physical
F. N. Li, Y. Li, D. Y. Fan, H. X. Wang
APPLIED SURFACE SCIENCE
(2018)
Article
Chemistry, Physical
F. N. Li, R. Akhvlediani, M. K. Kuntumalla, A. Hoffman
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
Mohan Kumar Kuntumalla, Mohammed Attrash, Fengnan Li, Alon Hoffman
