Growth of CZTS Thin Films by Cosputtering of Metal Targets and Sulfurization in H₂S

Figure 2

SEM micrograph of CZTS; (a) sample 1: few CuS crystallites are observed, (b) sample 2: some CuS and Sn₂S₃ crystallites are observed at the surface, and (c) sample S3: surface consists of columnar grains.

(a)

(b)

(c)