FLEXIBLE AND LIGHT WEIGHT COPPER INDIUM DISELENIDE SOLAR-CELLS ON POLYIMIDE SUBSTRATES

Thin film flexible CuInSe2 (CIS) solar cells have been fabricated fbr the first time on light-weight polymeric substrates. Evaporated Cu-In alloy precursors were selenized in H2Se atmosphere at around 400 degre es C to grow the CIS absorber layers, Low temperature techniques which are compatible with the polymeric substrates were used to deposit the window layers of CdS and ZnO. The demonstrated active area conversion efficiency of 9.3% makes this light-weight device very attractive for many terrestrial and space power generation applications where high s pecific power and mechanical flexibility are needed.