Ramprakash, Y. and Subramanian, V. and Krishnakumar, R. and Lakshmanan, A.S. (1987) Improved performance of photoetched cadmium sulphide electrodes in PEC cells. Bulletin of Electrochemistry , 3 (2). pp. 173-175. ISSN 0256-1654

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Abstract

The photoelectrochemical cell comprising a chemically etched CdS single crystal electrode in 2M NaOH - 0.3M Na2S-O.1M S gave V, = 410 mV, J,, = 0.64 mA cm-2 and ff = 0.28 under approximately 120 mW cm-2 tungsten-halogen illumination. A short photoetching of the CdS electrode in a dilute HCI-HN03 mixture remarkably improved the photo output characteristics as follows: V, = 520 mV (18% increase), J, = 2.33 mA cm-2 (68% increase) and ff = 0.47 (36% increase). The enhancement is a direct result of a reduction in the density of surface defects.

Item Type:	Article
Uncontrolled Keywords:	Cadmium sulphide electrode; photoelectrochemical cell; photoetching
Subjects:	Electrochemical Materials Science
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	23 Mar 2012 12:35
Last Modified:	23 Mar 2012 12:35
URI:	http://cecri.csircentral.net/id/eprint/2278

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