Zinc sulfide (ZnS) is one of the leading semiconductors for optoelectronic device applications. Here, we focused on synthesizing the undoped and transition metal (Cu)-doped ZnS (Zn\(_{1-x}\)Cu\(_{x}\)S) nanoparticles at different copper concentrations (x = 0, 0.03, 0.05, 0.07) using solid-state reaction. The synthesized Zn\(_{1-x}\)Cu\(_{x}\)S nanoparticles were subjected to different characterizations such as XRD, FE-SEM, EDS, UV–visible spectroscopy, PL, and two probe methods to study their structural, morphological, elemental, optical, and electrical properties. The XRD profile revealed that the prepared nanoparticles were in cubic structure with predominant orientation along (1 1 1) plane. The EDAX spectra confirmed the presence of host and dopant elements such as Zn, S, and Cu without any impurity elements. The formation of spherical-shaped clusters was confirmed by FE-SEM images. Using absorption spectra, the band gaps were calculated. Novel luminescence features, i.e., blue, green, and orange-red emission peaks, were observed in the photoluminescence spectra. Electrical properties were studied using two probe method (Keysight B2900 source meter).

硫化锌 (ZnS) 是光电器件应用的领先半导体之一。在这里，我们重点合成了不同铜浓度（x = 0， 0.03, 0.05, 0.07) 采用固相反应。对合成的 Zn \(_{1-x}\) Cu \(_{x}\) S 纳米颗粒进行了不同的表征，如 XRD、FE-SEM、EDS、紫外可见光谱、PL 和两种探针方法研究它们的结构、形态、元素、光学和电学特性。 XRD图谱显示所制备的纳米颗粒呈立方结构，主要沿(1 1 1)面取向。 EDAX 光谱证实存在主体元素和掺杂元素，例如 Zn、S 和 Cu，不含任何杂质元素。 FE-SEM 图像证实了球形团簇的形成。使用吸收光谱计算带隙。在光致发光光谱中观察到新的发光特征，即蓝色、绿色和橙红色发射峰。使用两个探针方法（Keysight B2900 源表）研究电气特性。