Spatial uniformity of minority-carrier lifetime in polycrystalline CdTe solar cells
- 23 May 1994
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (21) , 2879-2881
- https://doi.org/10.1063/1.111402
Abstract
Time-resolved photoluminescence was used to map recombination lifetimes in polycrystalline CdS/CdTe solar cells. Typical lifetime profiles indicated spatial variation by factors of 2–3 across 1 cm dimensions. Correlated device efficiency measurements indicated that spatial regions of lifetime minima dominated the open-circuit voltage.Keywords
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