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 Cu_2–xS was created by this method, and the amount was increased with laser fluence and irradiation time.

中文翻译：

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液相激光烧蚀制备Cu2ZnSnS4纳米粒子及其表征

通过在液体中激光烧蚀成功地制备了Cu ₂ ZnSnS ₄（CZTS）纳米粒子。用纳秒脉冲激光（Nd：YAG，二次谐波产生）辐照CZTS粉末以制备纳米颗粒。随着激光通量的增加，制备的纳米颗粒的初级粒径减小，并且该减小在11nm左右饱和。它们的二次粒径随着激光通量的增加而增加，因为会进行聚集。通过这种方法产生了诸如Cu _2-x S的副产物，并且其数量随着激光通量和照射时间的增加而增加。