Metallurgical Mechanism and Optical Properties of CuSnZnSSe Powders Using a 2-Step Sintering Process

Figure 2

Morphology of CZTSSe powders. (a) CZTSe (Se: 100%, 𝑥=0), (b) CZTSSe (S: 25% + Se: 75%, 𝑥=0.25), (c) CZTSSe (S: 50% + Se: 50%, 𝑥=0.5), (d) CZTSSe (S: 75% +Se: 25%, 𝑥=0.75), and (e) CZTS (S: 100%, 𝑥=1).

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(b)

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