Numerical investigations into polarization-induced self-powered GaN-based MSM photodetectors

doi:10.1364/AO.445069

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	Numerical investigations into polarization-induced self-powered GaN-based MSM photodetectors
	J. Wang; C. Chu; J. Che; H. Shao; Y. Zhang; X. Sun; Z.-H. Zhang and D. Li
	2021
发表期刊	Applied Optics
ISSN	1559128X
卷号	60 期号:35 页码:10975-10983
摘要	Traditional GaN-based metal-semiconductor-metal (MSM) photodetector (PD) features a symmetric structure, and thus a poor lateral carrier transport can be encountered, which can decrease the photocurrent and responsivity. To improve its photoelectric performance, we propose GaN-based MSM photodetectors with an AlGaN polarization layer structure on the GaN absorption layer. By using the AlGaN polarization layer, the electric field in the metal/GaN Schottky junction can be replaced by the electric fields in the metal/AlGaN Schottky junction and the AlGaN/GaN heterojunction. The increased polarization electric field can enhance the transport for the photogenerated carriers. More importantly, such polarization electric field cannot be easily screened by free carriers, thus showing the detectability for the even stronger illumination intensity. Moreover, we also conduct in-depth parametric investigations into the impact of different designs on the photocurrent and the responsivity. Hence, device physics regarding such proposed MSM PDs has been summarized. 2021 Optica Publishing Group
DOI	10.1364/AO.445069
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收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65472
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Wang,C. Chu,J. Che,et al. Numerical investigations into polarization-induced self-powered GaN-based MSM photodetectors[J]. Applied Optics,2021,60(35):10975-10983.
APA	J. Wang.,C. Chu.,J. Che.,H. Shao.,Y. Zhang.,...&Z.-H. Zhang and D. Li.(2021).Numerical investigations into polarization-induced self-powered GaN-based MSM photodetectors.Applied Optics,60(35),10975-10983.
MLA	J. Wang,et al."Numerical investigations into polarization-induced self-powered GaN-based MSM photodetectors".Applied Optics 60.35(2021):10975-10983.

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