کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1530063 | 1511988 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Electrodeposition and characterization of Fe doped CdSe thin films from aqueous solution Electrodeposition and characterization of Fe doped CdSe thin films from aqueous solution](/preview/png/1530063.png)
Thin films of Cadmium selenide (CdSe) and Ferrous (Fe) doped Cadmium selenide (CdSe:Fe) have been deposited on indium doped tin oxide coated conducting glass (ITO) substrates using potentiostatic electrodeposition technique.The mechanism of formation of CdSe and CdSe:Fe have been analyzed in the potential range between −1500 and +1500 mV versus SCE. X-ray diffraction pattern reveals that the deposited films possess hexagonal structure with preferential orientation along (002) plane. The dependency of microstructural parameters such as crystallite size, strain and dislocation density with FeSO4 concentration for CdSe:Fe thin films are studied. Surface morphology and film composition shows that films with smooth surface and well defined stoichiometry is obtained at 0.01 M dopant (FeSO4) concentration. Optical parameters such as band gap, refractive index and extinction coefficient for CdSe and CdSe:Fe thin films are estimated using optical absorption measurements. Photoelectrochemical solar cells are constructed using CdSe and CdSe:Fe as photocathode in 1 M each of Na2S, S and NaOH as redox electrolyte and their power output characteristics are studied.
Journal: Materials Science and Engineering: B - Volume 174, Issues 1–3, 25 October 2010, Pages 242–248