Spatial inhomogeneities and defect structures in CIGS and CIS materials: An ab-initio based Monte Carlo study

The chalcopyrite semiconductors CuIn1−xGaxSe2 (CIGS) and CuInSe2 (CIS) are excellent materials for high efficiency and low cost thin-film solar cells. This is due to the effective absorption of the solar spectrum and the inherent resilience to defects and composition fluctuations. Although the CIGS and CIS material in solar cells is highly inhomogeneous and… CONTINUE READING