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- W2574663663 abstract "采用水热法以硫代乙酰胺为硫源在铜片上沉积了Cu2S纳米薄膜，研究了添加剂种类对产物结构、形貌及紫外–可见光吸收性能的影响。X射线衍射仪(XRD)、场发射扫描电镜(FE-SEM)和红外光谱(IR)测试表明，产物为正交结构Cu2S，添加剂影响着产物的结晶及形貌。机理分析显示，在水热条件下添加剂以不同的方式参与了薄膜的形成过程。紫外–可见(UV-vis)光吸收性能测试及直接带隙计算表明，与Cu2S本体相比，所得薄膜带隙出现了不同程度的蓝移，这归因于样品的量子限制效应影响大于库仑项的影响。 Cu2S nano-films were synthesized on copper foil with TAA as sulfur sources by hydrothermal method. The effect of the different additions on structures, morphology and UV-vis absorption property of the films has been studied by X-Ray Diffraction (XRD), Scanning Electron Microscope (FESEM) and Infrared (IR) spectra and UV-vis absorption spectroscopy. The results show that the crystallinity and morphology of the Cu2S with orthogonal structure depended on the additions. The formation of the films was thought to come from the interaction between the additions and the reactants under the hydrothermal conditions. The UV-vis absorption spectra and the (αhν)2-hν curves suggest that the calculated band gap values indicated the distinct blue shift compared to that of the bulk Cu2S, which is attributed to the stronger quantum confinement effects than the Coulomb term." @default.
- W2574663663 created "2017-01-26" @default.
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- W2574663663 date "2012-01-01" @default.
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- W2574663663 doi "https://doi.org/10.12677/nat.2012.21002" @default.
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