Fast, multicolor photodetection with graphene-contacted p-GaSe/n-InSe van der Waals heterostructures

Nanotechnology
Faguang YanKaiyou Wang

Abstract

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 (∼2 μs), 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.

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Citations

Apr 24, 2018·Chemical Society Reviews·Riccardo FrisendaHerre S J van der Zant
May 22, 2019·Small·Fakun WangTianyou Zhai
Oct 3, 2019·The Review of Scientific Instruments·Jihao WangQingyou Lu
Sep 25, 2017·The Journal of Chemical Physics·T AyadiS Lebègue
Mar 3, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Huiming ShangPingAn Hu
Jun 4, 2020·The Review of Scientific Instruments·Jihao WangQingyou Lu
Jul 14, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Manish K Niranjan, Arghya Ghosh
Jan 5, 2019·ACS Applied Materials & Interfaces·Joonggyu KimDongseok Suh
Feb 20, 2020·ACS Applied Materials & Interfaces·Jing LiLixia Zhao
May 7, 2019·ACS Applied Materials & Interfaces·Wei FengPingAn Hu
Sep 28, 2018·ACS Applied Nano Materials·Wonjae KimMika Prunnila
Mar 12, 2020·ACS Applied Materials & Interfaces·Ye XinRuibin Liu
Mar 27, 2020·ACS Applied Materials & Interfaces·Jiaoyan ZhouJunhao Chu
May 8, 2020·ACS Applied Materials & Interfaces·Miaomiao YuWei Feng
Sep 22, 2020·ACS Applied Materials & Interfaces·Arvind Shankar KumarXuan P A Gao
Oct 5, 2021·ACS Applied Materials & Interfaces·Amir Muhammad AfzalJonghwa Eom
Nov 17, 2021·ACS Applied Materials & Interfaces·Shuai GuoRuibin Liu

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