人工晶体学报2011，Vol.40Issue(6)：1580-1586,7.
CdS纳米晶颗粒薄膜的制备及其光学特性研究
Preparation and Optical Properties of CdS Nano-crystalline Thin Films
摘要
Abstract
CdS thin films were prepared by chemical bath deposition ( CBD) at different ammonia concentration using CdCl2-H2O, CS( NH2 )2,NH4C1, NH3 · H2O and deionized water as precusors. The morphology, structure and S/Cd ratio of all samples were characterized by scanning electron microscopy (SEM) , X-ray diffractionmeter ( XRD) and X-ray energy dispersive spectroscopy ( EDS). The optical properties of CdS thin films were studied by using ultravioler-visible spectra and spectra ellipsometry. The results indicate that CdS thin film could be grown when ammonia concentration at the range of 0. 4-1.0 mol/L. With the ammonia concentration increasing, the crystallite size of CdS thin film becomes smaller. The S/Cd atom ratio and band gap gradually increases. Within 500-1000 run wavelength, the average value of the refractive index is 1.75 and the extinction coefficient is less than 0.07.关键词
CdS薄膜/化学浴沉积/折射率/消光系数/光学带隙Key words
CdS thin films/ chemical bath deposition/ refractive index/ extinction coefficient/ band gap分类
数理科学引用本文复制引用
赵湘辉,魏爱香,招瑜..CdS纳米晶颗粒薄膜的制备及其光学特性研究[J].人工晶体学报,2011,40(6):1580-1586,7.基金项目
广东省省部产学研项目(2011A090200003) （2011A090200003）
