Development of chemical bath deposited (CBD) CdS to steadily support the electrodeposited (ED) CdTe, by changing the volume of NH₄OH, a pH adjuster, in the CBD bath is reported here. The optimal volume of NH₄OH, which is the controlling parameter of interest, was identified based on the optical, electrical, structural, and morphological properties of the CdS developed. The sample developed exhibits the band gap energy of 2.32 eV with light transmittance >80% (500–900 nm). The photo-electrochemical cell and Mott-Schottky studies revealed n-type conductivity, open circuit voltage (V_OC) of 0.529 V, and short circuit current density (J_SC) of 12.290 μA/cm² at the CdS/electrolyte junction while the X-ray diffraction data and phase analysis revealed the formation of a blended hexagonal/cubic structures. Further, the scanning electron microscopic and the energy-dispersive X-ray spectroscopic studies elucidated a well-compact grain arrangement and agreed with the theoretical chemical composition (1:1) of CdS respectively.

本文报道了通过改变CBD浴液中NH ₄ OH（pH调节剂）的体积，开发化学浴沉积（CBD）CdS来稳定支持电沉积（ED）CdTe的方法。根据所开发的CdS的光学，电学，结构和形态学特性，确定了作为控制参数的NH ₄ OH的最佳体积。所开发的样品的带隙能量为2.32 eV，透光率> 80％（500–900 nm）。光电化学电池和Mott-Schottky研究表明，n型电导率，0.529 V的开路电压（V _OC）和12.290μA/ cm ^2的短路电流密度（J _SC）X射线衍射数据和相分析显示在CdS /电解质结处，形成了六方/立方混合结构。此外，扫描电子显微镜和能量色散X射线光谱研究阐明了紧密的晶粒排列，并分别与CdS的理论化学组成（1：1）相符。