Zinc sulfide (ZnS) quantum dots (QDs) were synthesized using a facile, low-cost and environmentally friendly method at room temperature and ambient pressure. The structural, optical and electrical properties of the as-prepared ZnS QDs were investigated. The monodispersed crystalline ZnS QDs with an average size of 3.8 nm has been prepared, an absorption peak at 292 nm in the ultra-violet (UV) range was observed. The maximum responsivity (R) and detectivity (D*) of the ZnS QDs based photodetector under 365 nm UV light illumination were 5.8 A W⁻¹ and 1.97×10¹³ Jones, respectively, which shows important potential application in UV detection.

硫化锌（ZnS）量子点（QDs）是在室温和环境压力下使用简便，低成本且环境友好的方法合成的。研究了所制备的ZnS量子点的结构，光学和电学性质。制备了平均粒径为3.8 nm的单分散晶体ZnS QD，在紫外（UV）范围内观察到292 nm处的吸收峰。ZnS QDs基光电探测器在365 nm紫外光照射下的最大响应度（R）和探测率（D *）分别为5.8 AW ^-1和1.97×10 ¹³ Jones，这在紫外检测中显示出重要的潜在应用。