Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 27, 2020
Previous Article Next Article

Improvement of electrodeposited Sb2Se3 thin film photoelectroactivity by cobalt grain boundary modification

Author affiliations

Abstract

This work presents, for the first time, the effects of cobalt-modification on the photoelectrochemical properties of Sb2Se3 thin films. The insertion of Co2+ ions caused an increase in the photocurrent, without protecting and catalytic layers, of 2.5 times towards the hydrogen evolution reaction compared with an unmodified film in the same period and minimized the initial photocorrosion of the material. However, other properties such as bandgap and crystalline structure were not altered by the low degree of modification used in this work. Different results led us to infer that the Co2+ ions modified the grain boundaries (GBs) of the Sb2Se3 films, creating a local and specific GB inversion and causing these improvements observed in the photoelectrocatalytic properties of the modified films.

Graphical abstract: Improvement of electrodeposited Sb2Se3 thin film photoelectroactivity by cobalt grain boundary modification

Back to tab navigation

Supplementary files

Article information


Submitted
19 Mar 2020
Accepted
22 Jun 2020
First published
23 Jun 2020

J. Mater. Chem. A, 2020,8, 13742-13753
Article type
Paper

Improvement of electrodeposited Sb2Se3 thin film photoelectroactivity by cobalt grain boundary modification

M. B. Costa, F. W. S. Lucas and L. H. Mascaro, J. Mater. Chem. A, 2020, 8, 13742
DOI: 10.1039/D0TA03160G

Social activity

Search articles by author

Spotlight

Advertisements