Preparation and Photoelectric Properties of SnO2:Nb Composite Thin Films
Abstract: By using sol-gel method, SnO2:Nb gel was prepared, and spin coating method was used to coat on glass substrates, which dried and calcined to obtain a homogeneous SnO2:Nb composite films. Under the same experimental conditions, the different doping amount of niobium, calcination temperature on the structure and morphology of SnO2:Nb film were discussed. By using XRD, XPS, SEM and other testing methods, the structure and morphology of SnO2:Nb composite film were characterized. At 500˚C, the film particle had high crystallization and small size, and the surface of the film was well-distributed. Its optical and electrical properties were tested by the ultraviolet-visi- ble spectrophotometer and four-probe resistivity meter. UV-Vis spectra showed that SnO2:Nb film absorbance in the near ultraviolet region had increased significantly, but the absorbance showed a downward trend with the increasing amount of Nb5+ doped; Conductivity analysis showed that Nb5+ doping amount of 8% (the amount of material), the conductivity of SnO2:Nb composite films was best.
文章引用: 何瑞英 , 魏长平 , 伞 靖 (2016) SnO2:Nb复合薄膜的制备及光电性能研究。 自然科学， 4， 28-34. doi: 10.12677/OJNS.2016.41005
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