Journal ArticleDOI
Construction of a β-Ga2O3-based metal–oxide–semiconductor-structured photodiode for high-performance dual-mode solar-blind detector applications
Zeng Liu,Shan Li,Zuyong Yan,Yuanyuan Liu,Yusong Zhi,Xia Wang,Zhenping Wu,Peigang Li,Weihua Tang +8 more
TLDR
In this article, a dual-mode β-Ga2O3 metal-oxide-semiconductor (MOS)-structured photodiode solar-blind detector is introduced, which shows a rectifying ratio of 2 × 103 at ±10 V with a low reverse leakage current of 1.05 pA.Abstract:
Sensitive, high photoresponse and energy-saving detectors are urgently required to monitor solar-blind UV signals. The impressive advantages of Ga2O3 in this field give rise to extensive research and studies. A high-performance dual-mode β-Ga2O3 metal–oxide–semiconductor (MOS)-structured photodiode solar-blind detector is introduced. The device shows a rectifying ratio of 2 × 103 at ±10 V with a low reverse leakage current of 1.05 pA. Under 1.1 μW cm−2 254 nm light illumination, it provides a specific detectivity (D*) of ∼1013 Jones, a high responsivity (R) of 189.89/3.96 A W−1 and a high external quantum efficiency (EQE) of 92 879%/1936% at 10/−10 V, suggesting a high-resolution and sensitive detection in the dual operating (photoconductive/depletion) mode. At zero bias, it exhibits an ultralow dark current of 4.2 pA, an R of 33.48 mA W−1, an EQE of 16.37% and a D* of 1.83 × 1011 Jones, yielding a self-powered operation owing to the enhanced built-in electrical field. Moreover, at ±200 V, the device still avoids breakdown and displays an R of 3930.55 A W−1 and a D* of 1015 Jones, allowing harsh environmental operation. In addition, no obvious degeneration was observed after two months storage. The dual-mode photodiode promises to perform solar-blind detection along with sensitive, stable and self-powered performances.read more
Citations
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Journal ArticleDOI
A Strategic Review on Gallium Oxide Based Deep-Ultraviolet Photodetectors: Recent Progress and Future Prospects
Damanpreet Kaur,Mukesh Kumar +1 more
Journal ArticleDOI
Bandgap engineering of Gallium oxides by crystalline disorder
Yancheng Chen,Ying-Jie Lu,Xun Yang,Shunfang Li,Kaiyong Li,Xuexia Chen,Zhiyang Xu,Jinhao Zang,Chongxin Shan +8 more
TL;DR: In this paper, the authors reported that the oxygen vacancy density and crystalline disorder of the Ga2O3 can be tuned continuously by modulating the O/Ga ratio during the growth process.
Journal ArticleDOI
High-Detectivity β -Ga₂O₃ Microflake Solar-Blind Phototransistor for Weak Light Detection
Shunjie Yu,Xiaolong Zhao,Mengfan Ding,Pengju Tan,Xiaohu Hou,Zhongfang Zhang,Wenxiang Mu,Zhitai Jia,Xutang Tao,Guangwei Xu,Shibing Long +10 more
TL;DR: In this article, a high-performance solar-blind phototransistor based on N2-annealed Ga2O3 microflakes for weak light detection was presented, which exhibits an ultra-low dark current of 27 fA, a high external quantum efficiency of $8.36\times 10^{7}$ %, a photo-to-dark-current ratio of $1.08\times 8.5$ A/W, a low power consumption of 2.92 pW, and a narrow-band response with a cut off wavelength of
Journal ArticleDOI
High-Performance β-Ga 2 O 3 Solar-Blind Schottky Barrier Photodiode With Record Detectivity and Ultrahigh Gain via Carrier Multiplication Process
Zhe Li,Cheng Yanan,Yu Xu,Zhuangzhuang Hu,Weidong Zhu,Dazheng Chen,Qian Feng,Hong Zhou,Jincheng Zhang,Chunfu Zhang,Yue Hao +10 more
TL;DR: In this paper, a high performance lateral GA2O3 solar-blind Schottky barrier photodiode (SBPD) with record detectivity (D*) and ultrahigh gain via carrier multiplication process was demonstrated.
Journal ArticleDOI
Photovoltaic and flexible deep ultraviolet wavelength detector based on novel β-Ga2O3/muscovite heteroepitaxy.
TL;DR: Photovoltaic detectors have shown excellent photocurrent stability under bending induced stress up to 0.32%.
References
More filters
Journal ArticleDOI
Graphene photodetectors for high-speed optical communications
TL;DR: In this paper, an asymmetric metallization scheme is adopted to break the mirror symmetry of the internal electric-field profile in conventional graphene field effect transistor channels, allowing for efficient photodetection.
Journal ArticleDOI
Extraction of Schottky diode parameters from forward current-voltage characteristics
S. K. Cheung,N. W. Cheung +1 more
TL;DR: In this article, the forward current densityvoltage (J•V) characteristics of a Schottky diode were used to determine the ideality factor n, the barrier height φB, and the series resistance R of the diode with one single I•V measurement.
Journal ArticleDOI
A Survey of Wide Bandgap Power Semiconductor Devices
TL;DR: In this article, a review of recent progresses in the development of SiC- and GaN-based power semiconductor devices together with an overall view of the state of the art of this new device generation is presented.
Journal ArticleDOI
High-detectivity polymer photodetectors with spectral response from 300 nm to 1450 nm.
Xiong Gong,Minghong Tong,Yangjun Xia,Wanzhu Cai,Ji Sun Moon,Yong Cao,Gang Yu,Chan-Long Shieh,Boo Nilsson,Alan J. Heeger +9 more
TL;DR: This work demonstrates polymer photodetectors with broad spectral response fabricated by using a small-band-gap semiconducting polymer blended with a fullerene derivative that can exceed the response of an inorganic semiconductor detector at liquid helium temperature.
Journal ArticleDOI
A review of Ga2O3 materials, processing, and devices
Stephen J. Pearton,Jiancheng Yang,Patrick H. Cary,Fan Ren,Jihyun Kim,Marko J. Tadjer,Michael A. Mastro +6 more
TL;DR: The role of defects and impurities on the transport and optical properties of bulk, epitaxial, and nanostructures material, the difficulty in p-type doping, and the development of processing techniques like etching, contact formation, dielectrics for gate formation, and passivation are discussed in this article.
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