模板法制备CdSe纳米线及其光学性质的研究

发布时间：2018-05-27 14:45

本文选题：电沉积 + 半导体　；参考：《稀有金属材料与工程》2014年02期

【摘要】：利用恒电位沉积方法,在阳极氧化铝(AAO)模板里沉积了CdSe纳米线。对其进行了结构和光学性质的表征,并且用循环伏安法讨论了其沉积机理。结果表明:室温下,0.1 mol·L-1CdSO4+0.25 mol·L-1H2SO4+50 mmol·L-1 SeO2配比的溶液,0.4 V恒电位沉积,在AAO模板中制备出了CdSe纳米线。EDS的结果表明Cd和Se的化学计量比接近于1:1;通过XRD确定了所沉积的CdSe为面心立方结构,其择优取向为(111)晶面。紫外可见分光光度计吸收光谱表明其吸收范围在400~700 nm,吸收最大处在500 nm,PL发射谱表明CdSe纳米线的发光峰在400 nm左右。
[Abstract]:CdSe nanowires were deposited in anodic alumina (AAO) template by potentiostatic deposition. The structure and optical properties were characterized and the deposition mechanism was discussed by cyclic voltammetry. The results showed that 0. 1 mol L-1CdSO4 0. 25 mol L-1H2SO4 50 mmol L-1 SeO2 solution was deposited at room temperature with 0. 4 V potentiostatic deposition. The results of CdSe nanowires. EDS prepared from AAO template show that the stoichiometric ratio of CD and se is close to 1: 1.The deposited CdSe has a face-centered cubic structure and its preferred orientation is C111) by XRD. The absorption range of CdSe nanowires is about 400nm, and the maximum absorption is 500nm PL emission spectrum, which indicates that the luminescence peak of CdSe nanowires is about 400nm.
【作者单位】：深圳大学深圳市特种功能材料重点实验室;
【基金】：国家自然科学基金(60906007)
【分类号】：TQ153.2

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