CdS is a IIIV family semiconductor chalcogenide that has been deposited on amorphous glass substrates as thin films form with various solution (precursor) volume (5, 10, and 15 mL) by employing a cost-effective spray technique using a nebulizer. The effect of the varying quantity of coating solution on the structural and optoelectronic properties has been studied. The X-ray diffraction (XRD) patterns reveal the polycrystalline nature of CdS with a hexagonal structure with preferential orientation along the c-axis. Atomic force microscope (AFM) demonstrated the film prepared with a 10 mL solution possesses uniform coating with spherical shaped nanograins. Energy dispersive X-ray analysis (EDX) reveals the coated film contains Cd and S elements. The direct bandgap values decreased with the increase in precursor volume and reached a minimum value for the film prepared with a 10 mL solution. Photoluminescence (PL) spectra revealed the two emission peaks in which a sharp dominant peak at 470 nm and a peak with a shoulder at 620 nm. The CdS film coated with a precursor spray volume of 10 mL resulted in better photo-sensitivity characteristics of the responsivity of 1.01 AW⁻¹, detectivity of 2.21 × 10¹² Jones, photo-sensitivity of ∼4.9 × 10³, and external quantum efficiency (EQE) of 257 %. The film-coated with a solution volume of 10 mL was found to have good optical characteristics which make them suitable for photo-detector applications.

CdS是II通过使用具有成本效益的喷雾技术，使用雾化器，已以各种溶液（前体）体积（5、10和15 mL）形成了以薄膜形式沉积在非晶玻璃衬底上的IV系列半导体硫族化物。研究了不同数量的涂料溶液对结构和光电性能的影响。X射线衍射（XRD）模式揭示了具有六边形结构，沿c轴优先取向的CdS的多晶性质。原子力显微镜（AFM）表明，用10 mL溶液制备的薄膜具有球形纳米颗粒的均匀涂层。能量色散X射线分析（EDX）显示涂膜中含有Cd和S元素。直接带隙值随前体体积的增加而减小，并达到了用10 mL溶液制备的薄膜的最小值。光致发光（PL）光谱显示了两个发射峰，其中在470 nm处有一个明显的主峰，在620 nm处有一个肩峰。涂有10 mL前体喷雾量的CdS膜具有更好的光敏特性，响应度为1.01 AW^-1，探测灵敏度为2.21×10 ¹² Jones，光敏系数约为4.9×10 ³，外部量子效率（EQE）为257％。发现溶液体积为10 mL的薄膜涂层具有良好的光学特性，使其适合于光电探测器应用。