Abstract
Cu2ZnSnS4 (CZTS) nanoparticles were successfully prepared by laser ablation in liquid. CZTS powders were irradiated with nanosecond-pulsed laser (Nd:YAG, second harmonic generation) to prepare nanoparticles. The primary particle size of prepared nanoparticles was decreased with the increase in laser fluence, and the decrease was saturated around 11 nm. The secondary particle size of them was increased with the increase in laser fluence because aggregation would proceed. A by-product such as Cu2–xS was created by this method, and the amount was increased with laser fluence and irradiation time.
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