Minority-carrier lifetime and efficiency of Cu(In,Ga)Se2 solar cells
- 31 August 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (9) , 1224-1226
- https://doi.org/10.1063/1.122134
Abstract
Room-temperature recombination dynamics has been investigated in a large set of different absorber films and compared to the electrical device characteristics of the respective solar cell modules. For a given cell preparation process, a characteristic relation between the low-injection minority-carrier lifetime of the absorber layers and the conversion efficiency of the solar cells is observed: Long lifetimes correlate with high open circuit voltages and conversion efficiencies, while no significant influence of the lifetime on the short circuit current is found.
Keywords
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