Issue 1, 2017

High-efficiency omnidirectional photoresponses based on monolayer lateral p–n heterojunctions

Abstract

Electrical and optical properties of lateral monolayer WSe2–MoS2 p–n heterojunctions were characterized to demonstrate a high responsivity of 0.26 A W−1 with an excellent omnidirectional photodetection capability. The heterojunction functioning as a diode exhibits a prominent gate-tuning behavior with an ideality factor of 1.25. In addition, ultrafast photoresponse, low-light detectability, and high-temperature operation have been achieved. These unique characteristics pave a way for the future development of sub-nano semiconductor devices.

Graphical abstract: High-efficiency omnidirectional photoresponses based on monolayer lateral p–n heterojunctions

Supplementary files

Article information

Article type
Communication
Submitted
26 Apr 2016
Accepted
12 Oct 2016
First published
28 Oct 2016

Nanoscale Horiz., 2017,2, 37-42

High-efficiency omnidirectional photoresponses based on monolayer lateral p–n heterojunctions

M. Tsai, M. Li, Y. Shi, L. Chen, L. Li and J. He, Nanoscale Horiz., 2017, 2, 37 DOI: 10.1039/C6NH00075D

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