气候变化领域集成服务门户(CCPortal): Fast, multicolor photodetection with graphene-contacted p-GaSe/n-InSe van der Waals heterostructures

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DOI	10.1088/1361-6528/aa749e
	Fast, multicolor photodetection with graphene-contacted p-GaSe/n-InSe van der Waals heterostructures
	Yan, Faguang; Zhao, Lixia; Patane, Amalia; Hu, PingAn; Wei, Xia; Luo, Wengang; Zhang, Dong; Lv, Quanshan; Feng, Qi; Shen, Chao; Chang, Kai; Eaves, Laurence; Wang, Kaiyou
发表日期	2017
ISSN	0957-4484
EISSN	1361-6528
卷号	28 期号:27
英文摘要	The integration of different two-dimensional materials within a multilayer van der Waals (vdW) heterostructure offers a promising technology for high performance opto-electronic devices such as photodetectors and light sources. Here we report on the fabrication and electronic properties of vdW heterojunction diodes composed of the direct band gap layered semiconductors InSe and GaSe and transparent monolayer graphene electrodes. We show that the type II band alignment between the two layered materials and their distinctive spectral response, combined with the short channel length and low electrical resistance of graphene electrodes, enable efficient generation and extraction of photoexcited carriers from the heterostructure even when no external voltage is applied. Our devices are fast (similar to 2 mu s), self-driven photodetectors with multicolor photoresponse ranging from the ultraviolet to the near-infrared and offer new routes to miniaturized optoelectronics beyond present semiconductor materials and technologies.
关键词	multicolor gallium selenide indium selenide van der Waals heterostructure built-in potential
学科领域	Science & Technology - Other Topics; Materials Science; Physics
语种	英语
WOS研究方向	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
来源期刊	NANOTECHNOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111922
作者单位	Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Yan, Faguang,Zhao, Lixia,Patane, Amalia,et al. Fast, multicolor photodetection with graphene-contacted p-GaSe/n-InSe van der Waals heterostructures[J]. 中国科学院西北生态环境资源研究院,2017,28(27).
APA	Yan, Faguang.,Zhao, Lixia.,Patane, Amalia.,Hu, PingAn.,Wei, Xia.,...&Wang, Kaiyou.(2017).Fast, multicolor photodetection with graphene-contacted p-GaSe/n-InSe van der Waals heterostructures.NANOTECHNOLOGY,28(27).
MLA	Yan, Faguang,et al."Fast, multicolor photodetection with graphene-contacted p-GaSe/n-InSe van der Waals heterostructures".NANOTECHNOLOGY 28.27(2017).