Solar Energy Materials and Solar Cells, Vol.50, No.1, 7-12, 1998
Preparation of CuInSe2 thin films with large grain by excimer laser ablation
Thin films of CuInSe2 (CIS) were prepared by XeCl excimer laser ablation on glass substrates. The deposition was carried out at 550 degrees C and the target-substrate distance was changed from 15 to 60 mm. From XRD and EPMA measurements, all films showed the single-phase and stoichiometric chalcopyrite structure, independent of the distance. The deposition rate was large with the small distance. The surface morphology and cross-sectional SEM images were observed. The electrical conductivity measurements gave p-type conduction, and the mobility was improved with the smaller distance.