新疆大学物理科学与技术学院
纸质出版:2016
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[1]乔忠旺,李锦,关晓英,等.溶剂热制备Cd_(1-x)Cu_xS纳米结构及其形貌和光学性能的研究[J].新疆大学学报(自然科学版),2016,33(04):427-431.
[1]乔忠旺,李锦,关晓英,等.溶剂热制备Cd_(1-x)Cu_xS纳米结构及其形貌和光学性能的研究[J].新疆大学学报(自然科学版),2016,33(04):427-431. DOI: 10.13568/j.cnki.651094.2016.04.010.
DOI:10.13568/j.cnki.651094.2016.04.010.
研究了Cu掺杂对溶剂热合成的CdS的结构、形貌和光性能的影响.X射线衍射结果显示全部样品均为结晶良好的六方相CdS
Cu掺杂后产物中没有出现任何杂相.Cu的掺入导致产物的品格和形貌发生了明显的变化.适当的Cu掺杂(x=0.075)可以得到由直径约为50nm的纳米俸组装而成的花状结构.紫外-可见吸收谱显示CdS在350-500nm波长范围内有一个较宽的吸收带.随着Cu掺杂浓度的增加
产物对可见光吸收增强
禁带宽度变窄.纯CdS在470nm和545nm有两个光致发光峰
而Cdo 925Cuo 075S样品的光致发光峰位分别位于470nm和525nm处
预示着Cd1-xCu_xS在可见光具有很好的荧光性能.
This study reports the effect of Cu-doping on structural
morphological and optical properties of CdS synthesized by solvothermal method.The results of X-ray diffraction(XRD) indicate all the samples are hexagonal phase with high crystallinity and no any purity.The lattice and morphology of products have obviously changed due to Cu2+ ion doping.By appropriate Cu doping concentration(x=0.075)
flower-like microcrystals assembled by nanorods with diameter about 50 nm can be obtained.Ultraviolet-visible(UvVis) absorption spectrum suggests that CdS have a wide absorption band in 350-500 nm wavelength range.The increase of Cu2+ doping concentration results the light absorption enhancing and corresponding energy band gap decrease.Pure CdS sample has two photoluminescence(PL) peaks around 470 nm and 545 nm while the peak positions of Cd0.925Cu0.075S are around 470 nm and 525 nm.From the PL spectrum
it can be seen that Cd1-xCu_xS in the visible waves has good luminescence properties.
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