Stable Hydrogen Evolution from CdS-Modified CuGaSe<sub>2</sub> Photoelectrode under Visible-Light Irradiation

2013312 citationsJournal Article

Authors

Makoto Moriya · The University of Tokyo

Tsutomu Minegishi · The University of Tokyo

Hiromu Kumagai · The University of Tokyo

Masao Katayama · The University of Tokyo

Jun Kubota · The University of Tokyo

Kazunari Domen · The University of Tokyo

Abstract

The photoelectrochemical properties of CuGaSe2 modified by deposition of a thin CdS layer were investigated. The CdS layer formed a p-n junction on the surface of the electrode, improving its photoelectrochemical properties. There was an optimal CdS thickness because of the balance between the charge separation effect and light absorption by CdS. CdS-deposited CuGaSe2 showed high stability under the observed reaction conditions and evolved hydrogen continuously for more than 10 days.

Topics & Keywords

Chalcogenide Semiconductor Thin Films Advanced Photocatalysis Techniques Copper-based nanomaterials and applications

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Journal of the American Chemical Society

Volume 135, Issue 10, pp. 3733-3735

DOI: 10.1021/ja312653y

Field-Weighted Citation Impact: 27.39