Electrical and Photoresponse Properties of Inversion Asymmetric   Topological Insulator BiTeCl Nanoplates

doi:10.1002/cnma.201700041

CORC > 北京大学 > 化学与分子工程学院

	Electrical and Photoresponse Properties of Inversion Asymmetric Topological Insulator BiTeCl Nanoplates
	Liu, Yujing ; Yin, Jianbo ; Tan, Zhenjun ; Wang, Mingzhan ; Wu, Jinxiong ; Liu, Zhongfan ; Peng, Hailin
刊名	CHEMNANOMAT
	2017
关键词	bismuth tellurochloride photoresponsivity strong inversion asymmetry ternary topological insulator
DOI	10.1002/cnma.201700041
英文摘要	Topological insulators (TIs) are new quantum materials with bulk energy gaps and unique helical gapless surface states protected by time-reversal symmetry, providing a platform for the exploration of novel quantum phenomena and emerging applications. Bismuth tellurochloride (BiTeCl), the first strong inversion asymmetric topological insulator, has attracted considerable attention because of its exotic crystal structure and electrical band structure. Herein, we report the crystalline-surface-dependent n-type and p-type field effect transistors based on two-dimensional (2D) BiTeCl nanoplates. The p-type 2D BiTeCl exhibited a relatively strong photosensitivity with small dark current. Photovoltage generation in the vertical conducting channel of 2D BiTeCl is enhanced by 2-3times in comparison with that in the planar conducting channel, presumably due to the enhanced separation efficiency of photogenerated electron-hole pairs induced by the existing built-in electric field in polarized BiTeCl nanoplates. Our studies may encourage devoted efforts towards intrinsic topological p-n junctions and high-performance electrical and optoelectronic devices.; National Natural Science Foundation of China [21525310]; National Basic Research Program of China [2014CB932500]; National Program for Support of Top-Notch Young Professionals; SCI(E); ARTICLE; 6,SI; 406-410; 3
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/473087]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Liu, Yujing,Yin, Jianbo,Tan, Zhenjun,et al. Electrical and Photoresponse Properties of Inversion Asymmetric Topological Insulator BiTeCl Nanoplates[J]. CHEMNANOMAT,2017.
APA	Liu, Yujing.,Yin, Jianbo.,Tan, Zhenjun.,Wang, Mingzhan.,Wu, Jinxiong.,...&Peng, Hailin.(2017).Electrical and Photoresponse Properties of Inversion Asymmetric Topological Insulator BiTeCl Nanoplates.CHEMNANOMAT.
MLA	Liu, Yujing,et al."Electrical and Photoresponse Properties of Inversion Asymmetric Topological Insulator BiTeCl Nanoplates".CHEMNANOMAT (2017).