Pulsed electrodeposition of Cuinse2 thin films with morphology for solar cell applications

Mandati, S and Bulusu, V S and Dey, Suhash Ranjan and Joshi, S V (2013) Pulsed electrodeposition of Cuinse2 thin films with morphology for solar cell applications. Journal of The Electrochemical Society, 160 (4). D173-D177. ISSN 0013-4651

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Copper indium diselenide (CuInSe2) films have been prepared by pulse electrodeposition technique on Molybdenum substrate followed by post-deposition annealing at 550°C. Optimization of pulse parameters by varying the pulse duration (duty cycle) in order to achieve high quality films has been reported. Appropriate manipulation of pulse parameters has resulted in a novel flake-like crystallite morphology and better control over the composition of individual elements. The CIS thin films were comprehensively characterized using SEM-EDS, FIB, XRD and UV-DRS to study their morphology, phase constitution, etc. and PEC (photoelectrochemistry) measurements were also carried out to ascertain the photoelectrochemical performance of the CIS absorber layer. The bandgap of the CIS films was determined to be 1.02 eV. The flake like crystallite morphology observed in CIS thin films under the optimized processing conditions was found to yield enhanced cathodic photoresponse under solar simulated light with a photocurrent density of 20 μA/cm2 (observed at a potential of -0.6 V vs. SCE). The films exhibited a photoresponse typical of a p-type semiconductor

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IITH Creators:
IITH CreatorsORCiD
Dey, Suhash Ranjanhttp://orcid.org/0000-0002-5148-9534
Item Type: Article
Uncontrolled Keywords: Copper indium diselenide; Crystallite morphology; Photo-electrochemistry; Photoelectrochemical performance; Post deposition annealing; Pulse electrodeposition; Pulsed electrodeposition; Solar-cell applications
Subjects: Materials Engineering > Materials engineering
Divisions: Department of Material Science Engineering
Depositing User: Team Library
Date Deposited: 02 Dec 2014 10:50
Last Modified: 07 Sep 2017 08:59
URI: http://raiith.iith.ac.in/id/eprint/1111
Publisher URL: https://doi.org/10.1149/2.080304jes
OA policy: http://www.sherpa.ac.uk/romeo/issn/0013-4651/
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