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DOI	10.1016/j.scib.2020.07.037
	Hole-dominated Fowler–Nordheim tunneling in 2D heterojunctions for infrared imaging
	Tong L.; Peng M.; Wu P.; Huang X.; Li Z.; Peng Z.; Lin R.; Sun Q.; Shen Y.; Zhu X.; Wang P.; Xu J.; Ye L.
发表日期	2021
ISSN	20959273
起始页码	139
结束页码	146
卷号	66 期号:2
英文摘要	Heterostructures based on diverse two-dimensional (2D) materials are effective for tailoring and further promoting device performance and exhibit considerable potential in photodetection. However, the problem of high-density thermionic carriers can be hardly overcome in most reported heterostructure devices based on type I and type II band alignment, which leads to an unacceptably small Iphoto/Idark and strong temperature dependence that limit the performance of photodetectors. Here, using the MoTe2/h-BN/MoTe2/h-BN heterostructure, we report the hole-dominated Fowler–Nordheim quantum tunneling transport in both on and off states. The state-of-the-art device operating at room temperature shows high detectivity of >108 Jones at a laser power density of <0.3 nW μm−2 from the visible to near infrared range. In addition, the fast on–off switching and highly sensitive photodetection properties promise superior imaging capabilities. The tunneling mechanism, in combination with other unique properties of 2D materials, is significant for novel photodetection. © 2020 Science China Press
关键词	Fowler–Nordheim quantum tunneling High detectivity MoTe2 Photodetection Response speed
英文关键词	Infrared devices; Photodetectors; Quantum chemistry; Quantum theory; Temperature distribution; Thermionic power generation; Heterostructure devices; Imaging capabilities; Near-infrared range; State-of-the-art devices; Temperature dependence; Tunneling mechanism; Two Dimensional (2 D); Type II band alignments; Thermography (imaging)
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207574
作者单位	School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China; School of Physics and Innovation Institute, Huazhong University of Science and Technology, Wuhan, 430074, China; State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Shanghai, 200083, China; Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; Department of Electronic Engineering, Materials Science and Technology Research Center, The Chinese University of Hong Kong, Hong Kong
推荐引用方式 GB/T 7714	Tong L.,Peng M.,Wu P.,等. Hole-dominated Fowler–Nordheim tunneling in 2D heterojunctions for infrared imaging[J],2021,66(2).
APA	Tong L..,Peng M..,Wu P..,Huang X..,Li Z..,...&Ye L..(2021).Hole-dominated Fowler–Nordheim tunneling in 2D heterojunctions for infrared imaging.Science Bulletin,66(2).
MLA	Tong L.,et al."Hole-dominated Fowler–Nordheim tunneling in 2D heterojunctions for infrared imaging".Science Bulletin 66.2(2021).