Near-Direct Bandgap WSe2/ReS2 Type-II pn Heterojunction for Enhanced Ultrafast Photodetection and High-Performance Photovoltaics

Varghese, Abin; Saha, Dipankar; Thakar, Kartikey; Jindal, Vishwas; Ghosh, Sayantan; V. Medhekar, Nikhil; Ghosh, Sandip; Lodha, Saurabh

doi:10.1021/acs.nanolett.9b04879

Public

Near-Direct Bandgap WSe2/ReS2 Type-II pn Heterojunction for Enhanced Ultrafast Photodetection and High-Performance Photovoltaics

Published in Nano Letters • Feb 20, 2020

Authors:

Abin Varghese

Dipankar Saha

Kartikey Thakar

Abstract

Pn heterojunctions comprising layered van der Waals (vdW) semiconductors have been used to demonstrate current-rectifiers, photodetectors, and photovoltaic devices. However, a direct or near-direct heterointerface bandgap for enhanced photogeneration in high light-absorbing few-layer vdW materials r...

Subject

Photodetection

Responsivity

Materials science

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