Microstructural changes of CdTe during the annealing process

被引:8
作者
Chapman, AJ [1 ]
Lane, DW
Rogers, KD
Özsan, ME
机构
[1] Cranfield Univ, RMCS, Dept Mat & Med Sci, Swindon SN6 8LA, Wilts, England
[2] Teksolar Ltd, Woking, Surrey, England
关键词
sulfur; diffusion; cadmium telluride; cadmium sulfide;
D O I
10.1016/S0040-6090(01)01547-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Complete thin film solar cells have been fabricated by physical vapour deposition of CdTe onto chemical-bath-deposited CdS supported on a commercial SnO2/glass substrate. Cell I-V characteristics were measured under AM 1.5(G) illumination. Energy dispersive X-ray analysis was used to measure the average stoichiometry. Nuclear Reaction Analysis was used to measure the degree of S diffusion within the CdTe thin films. X-ray diffraction was used to determine the lattice parameter of the CdTe. Results showed the CdTe films deposited at low deposition rates (<2 nm s(-1)) exhibited greater S diffusion after a partial recrystallisation during annealing. Higher CdTe deposition rates correlated to increased Te concentration for the as-deposited films, significantly reduced during annealing. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:522 / 525
页数:4
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