Effect of Heat Treatment on the Crystal Structure and Optical Band Gap of Cigs Thin Films
The CIGS thin films were prepared on ordinary soda lime glass substrates by pulsed laser deposition (PLD). The XRD and UV-visible spectrophotometer has been determined. The influence of different heat treatment temperature on crystal structure and optical properties has been studied. The results shows that heat treatment at 450°C, the films along the (112) plane preferential grow. The thin film’s structure is integrity, the film is in best crystallization conditions, band gap is 1.35eV and the film has a high visible light absorption efficiency.
Weiguo Pan, Jianxing Ren and Yongguang Li
L. Han et al., "Effect of Heat Treatment on the Crystal Structure and Optical Band Gap of Cigs Thin Films", Advanced Materials Research, Vols. 347-353, pp. 94-97, 2012