Inorganic–organic hybrid semiconductor nanomaterials: (ZnSe)(N₂H₄)_x

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• 作者：Lina Liu ; Hongwei Song ; Libo Fan ; Fang Wang ; Ruifei Qin ; Biao Dong ; Haifeng Zhao ; Xinguang Ren ; Guohui Pan ; Xue Bai ; Qilin Dai
• 关键词：A. Composites ; B. Nanostructures ; C. Semiconductors ; D. Luminescence
• 刊名：Materials Research Bulletin
• 出版年：2009
• 出版时间：3 June 2009
• 年：2009
• 卷：44
• 期：6
• 页码：1385-1391
• 全文大小：1541 K

文摘

In this paper, inorganic–organic hybrid semiconductor (ZnSe)(N₂H₄)_x(C₅H₅N)_y nanosheets as well as (ZnSe)(C₅H₅N)_y nanoparticles were first synthesized by a solvothermal method in a ternary solution and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectra, ultraviolet–visible (UV–vis) absorption spectra, thermogravimetric analysis (TGA), differential scanning calorimeter (DSC) and photoluminescence (PL) spectra. The results indicated that the morphology and composition of the products were largely influenced by the reaction temperature and the volume ratio of water. When the reaction temperature and the water content were lower, (ZnSe)(N₂H₄)_x(C₅H₅N)_y nanosheets were formed. As the reaction temperature or the content of water was high enough, (ZnSe)(C₅H₅N)_y nanoparticles were formed. Pure hexagonal wurtzite ZnSe nanosheets or zinc blende ZnSe nanoparticles were obtained by extracting the corresponding hybrids. The bandgap absorption of ZnSe nanocrystals blue shifted in comparison with the bulk. The photoluminescent intensity of (ZnSe)(N₂H₄)_x(C₅H₅N)_y nanosheets was much stronger than that of (ZnSe)(C₅H₅N)_y nanoparticles.