Rk. Ahrenkiel et al., SPATIAL UNIFORMITY OF MINORITY-CARRIER LIFETIME IN POLYCRYSTALLINE CDTE SOLAR-CELLS, Applied physics letters, 64(21), 1994, pp. 2879-2881
Time-resolved photoluminescence was used to map recombination lifetime
s in polycrystalline CdS/CdTe solar cells. Typical lifetime profiles i
ndicated spatial variation by factors of 2-3 across 1 cm dimensions. C
orrelated device efficiency measurements indicated that spatial region
s of lifetime minima dominated the open-circuit voltage.