Figure 8From: CZTSe solar cells prepared by electrodeposition of Cu/Sn/Zn stack layer followed by selenization at low Se pressureSurface and cross-section SEM images of CZTSe thin films prepared by the various selenization conditions. (a-b) Without a tin source (A1), (c-d) with a tin source at a temperature of 400°C (A2), and (e-f) with a tin source at 530°C (A3).Back to article page