Galvanic synthesis of Cu2−XSe thin films and their photocatalytic and thermoelectric properties

Galvanic synthesis of Cu2−XSe thin films and their photocatalytic and thermoelectric properties Article history: Cu Se thin film with cubic berzelianite phase was prepared by a simple, low-cost two electrode 2−X Received 1 November 2015 electrochemical technique and the photocatalytic and thermoelectric properties of the thin films were Received in revised form investigated. The results showed that Cu Se crystallized in the cubic berzelianite phase and found to 2−X 28 December 2015 possess both direct and indirect band gaps of 2.9 and 1.05 eV respectively, covering almost the entire range Accepted 2 February 2016 of solar-spectrum. The photocatalytic discoloration of aqueous methylene blue (MB) and rose-bengal (RB) Available online 9 February 2016 dyes over Cu Se thin films were investigated under visible light irradiation. Cu Se thin films showed 2−X 2−X higher catalytic activity for MB compared to RB in presence of H O . The photocatalytic discoloration 2 2 Keywords: followed first-order reaction kinetics. Complete removal of aqueous MB was realized after visible light Thin film semiconductor irradiation for 150 min with Cu Se thin film catalyst in presence of H O . Thermoelectric perform- 2−X 2 2 Galvanic synthesis ances through power factor and figure of merit have been evaluated. Carrier concentration obtained Photocatalytic property Thermoelectric property from thermoelectric http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Galvanic synthesis of Cu2−XSe thin films and their photocatalytic and thermoelectric properties

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2016.02.020
Publisher site
See Article on Publisher Site

Abstract

Article history: Cu Se thin film with cubic berzelianite phase was prepared by a simple, low-cost two electrode 2−X Received 1 November 2015 electrochemical technique and the photocatalytic and thermoelectric properties of the thin films were Received in revised form investigated. The results showed that Cu Se crystallized in the cubic berzelianite phase and found to 2−X 28 December 2015 possess both direct and indirect band gaps of 2.9 and 1.05 eV respectively, covering almost the entire range Accepted 2 February 2016 of solar-spectrum. The photocatalytic discoloration of aqueous methylene blue (MB) and rose-bengal (RB) Available online 9 February 2016 dyes over Cu Se thin films were investigated under visible light irradiation. Cu Se thin films showed 2−X 2−X higher catalytic activity for MB compared to RB in presence of H O . The photocatalytic discoloration 2 2 Keywords: followed first-order reaction kinetics. Complete removal of aqueous MB was realized after visible light Thin film semiconductor irradiation for 150 min with Cu Se thin film catalyst in presence of H O . Thermoelectric perform- 2−X 2 2 Galvanic synthesis ances through power factor and figure of merit have been evaluated. Carrier concentration obtained Photocatalytic property Thermoelectric property from thermoelectric

Journal

Applied Surface ScienceElsevier

Published: Apr 30, 2016

References

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