Low temperature photoluminescence spectroscopy of thin film, polycrystalline CdTe/CdS solar cell structures

Bridge, C. J., Dawson, P., Buckle, Philip Derek ORCID: https://orcid.org/0000-0001-9508-7783 and Özsan, M. E. 2000. Low temperature photoluminescence spectroscopy of thin film, polycrystalline CdTe/CdS solar cell structures. Semiconductor Science and Technology 15 (10) , pp. 975-979. 10.1088/0268-1242/15/10/308

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Abstract

As-grown n-CdTe/n-CdS solar cell structures deposited on tin oxide-coated glass have been studied using low temperature photoluminescence spectroscopy. The structures were annealed in air at temperatures up to 600 °C. For anneal temperatures of 400-450 °C, and above, acceptor related transitions at around 1.45, 1.51 and 1.56 eV are tentatively ascribed to copper, oxygen and VCd-related centres, respectively. Illuminated current-voltage measurements have shown that these findings are consistent with considerable improvements in short circuit current density that are believed to be associated with n- to p-type conversion of the CdTe film.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	IOP Publishing
ISSN:	0268-1242
Last Modified:	19 May 2023 01:40
URI:	https://orca.cardiff.ac.uk/id/eprint/36993

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