Borkar, Rajnikant and Dahak, Rashmi and Rayalu, S. S. and Bansiwal, A. K. (2018) Copper Oxide Nanograss for Efficient and Stable Photoelectrochemical Hydrogen Production by Water Splitting. Journal of Electronic Materials, 47 (3). pp. 1824-1831. ISSN 0361-5235, ESSN: 1543-186X

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Abstract

A biphasic copper oxide thin film of grass-like appendage morphology is synthesized by two-step electro-deposition method and later investigated for photoelectrochemical (PEC) water splitting for hydrogen production. Further, the thin film was characterized by UV–Visible spectroscopy, x-ray diffraction (XRD), Scanning electron microscopy (SEM) and PEC techniques. The XRD analysis confirms formation of biphasic copper oxide phases, and SEM reveals high surface area grass appendage-like morphology. These grass appendage structures exhibit a high cathodic photocurrent of � 1.44 mAcm�2 at an applied bias of � 0.7 (versus Ag/AgCl) resulting in incident to photon current efficiency (IPCE) of � 10% at 400 nm. The improved light harvesting and charge transport properties of grass appendage structured biphasic copper oxides makes it a potential candidate for PEC water splitting for hydrogen production.

Item Type:	Article
Uncontrolled Keywords:	Copper Oxide; Photoelectrochemical (PEC); Water Splitting
Subjects:	Chemistry, Chemical Technology Materials Science
Divisions:	UNSPECIFIED
Depositing User:	Mr. RK Lohiya
Date Deposited:	05 Apr 2019 09:45
Last Modified:	05 Apr 2019 09:45
URI:	http://neeri.csircentral.net/id/eprint/1232

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