Metal sulphide CuS and CdS nanoparticles capped with Cetyltrimethylammonium bromide (CTAB) were synthesized by hydrothermal method. Structural, morphological, chemical composition, optical and luminescent properties were evaluated by different analytical techniques. X-ray diffraction (XRD) analysis of the CTAB capped metal sulfide nanoparticles reveals the formation of hexagonal structure. High-resolution transmission electron microscopy (HRTEM) images show that the morphology of the capped copper sulphide samples consists of hexagonal structure and capped cadmium has spherical shape and also confirms the crystalline nature of the particles with distinct lattice fringes. In FTIR spectroscopy, the composition of the CTAB capped CuS and CdS nanoparticles have been confirmed. The analysis of photoluminescence (PL) and optical transition show a red shift due to the reduction of band gap energy and it is attributed to the low defects and high crystallinity. The optical studies indicate that CuS and CdS nanoparticles with CTAB can be suitable for optoelectronic devices and photovoltaic applications.

采用水热法合成了被十六烷基三甲基溴化铵（CTAB）包覆的金属硫化物CuS和CdS纳米粒子。通过不同的分析技术评估了结构，形态，化学组成，光学和发光性质。CTAB封端的金属硫化物纳米粒子的X射线衍射（XRD）分析揭示了六边形结构的形成。高分辨率透射电子显微镜（HRTEM）图像显示，封端的硫化铜样品的形貌由六边形结构组成，封端的镉具有球形形状，也证实了具有明显晶格条纹的颗粒的晶体性质。在FTIR光谱学中，已经证实了CTAB封端的CuS和CdS纳米颗粒的组成。由于带隙能量的减少，光致发光（PL）和光学跃迁的分析显示出红移，这归因于低缺陷和高结晶度。光学研究表明，具有CTAB的CuS和CdS纳米粒子可适用于光电器件和光伏应用。