High-performance self-powered amorphous-BaTiO3/p-Si heterojunction photodetector controlled by ferroelectric effect

doi:10.1016/j.apsusc.2023.156371

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	High-performance self-powered amorphous-BaTiO3/p-Si heterojunction photodetector controlled by ferroelectric effect
	W. S. Han; K. W. Liu; J. L. Yang; X. Chen; Q. Ai; Y. X. Zhu; Z. Cheng; B. H. Li; L. Liu and D. Z. Shen
	2023
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	615 页码:9
摘要	The coupling of ferroelectric and photoelectric effects provides a promising alternative for enhancing the per-formance of the photodetectors. Here, a high-performance self-powered UV-visible photodetector enhanced by the ferroelectric effect has been demonstrated on amorphous BaTiO3/p-Si heterojunction. When the depolari-zation field in the ferroelectric BaTiO3 layer is in the same direction as the built-in field at the heterojunction, the responsivities of the device at 0 V can be significantly improved to 14 mA/W, 27 mA/W, and 223 mA/W at 254 nm, 365 nm, and 600 nm, respectively, which is superior to any other reported BaTiO3-based self-driven pho-todetectors. In addition, the device possesses a quick response speed with rising/fall times of 450 mu s/460 mu s at 254 nm and 80 mu s/140 mu s at 600 nm. Moreover, due to the defect-assistant recombination of photogenerated carriers at the amorphous BaTiO3/p-Si interface and grain boundaries in amorphous BaTiO3, the spike of tran-sient photocurrent can be visualized under 254 nm illumination. This work presents a novel strategy for the design and research of high-performance self-powered photodetectors.
DOI	10.1016/j.apsusc.2023.156371
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67517
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	W. S. Han,K. W. Liu,J. L. Yang,et al. High-performance self-powered amorphous-BaTiO3/p-Si heterojunction photodetector controlled by ferroelectric effect[J]. Applied Surface Science,2023,615:9.
APA	W. S. Han.,K. W. Liu.,J. L. Yang.,X. Chen.,Q. Ai.,...&L. Liu and D. Z. Shen.(2023).High-performance self-powered amorphous-BaTiO3/p-Si heterojunction photodetector controlled by ferroelectric effect.Applied Surface Science,615,9.
MLA	W. S. Han,et al."High-performance self-powered amorphous-BaTiO3/p-Si heterojunction photodetector controlled by ferroelectric effect".Applied Surface Science 615(2023):9.

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