A study of the effects of varying cadmium chloride treatment on the luminescent properties of CdTe/CdS thin film solar cells

Authors
Potter, MDG Halliday, DP Cousins, M Durose, K
Citation
Mdg. Potter et al., A study of the effects of varying cadmium chloride treatment on the luminescent properties of CdTe/CdS thin film solar cells, THIN SOL FI, 361, 2000, pp. 248-252
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
THIN SOLID FILMS
ISSN journal
00406090 → ACNP
Volume
361
Year of publication
2000
Pages
248 - 252
Database
ISI
SICI code
0040-6090(20000221)361:<248:ASOTEO>2.0.ZU;2-3
Abstract
Photoluminescence (PL) and electroluminescence (EL) spectroscopy have been used on a series of chemically bevelled CdTe/CdS thin film solar cells to s tudy the effects of different CdCl2 annealing times. An anneal time of 10 m in was found to produce the most efficient (8.4%) cells. Evidence was found for the CdCl2 anneal promoting the formation of a CdSxTe1-x alloy near the interface. Emission at the back surface of the cells was identified as bei ng due to the 'Y' luminescence band and a donor-acceptor pair (DAP) recombi nation involving cadmium vacancies and chlorine donors. Sulphur diffusion i nt the CdTe was estimated based on changes to the energy gap obtained from the PL data. (C) 2000 Elsevier Science S.A. All rights reserved.