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赵文华,魏智强,朱学良,张旭东,冯旺军,姜金龙.水热法合成Zn1-xCoxS纳米棒的光学性能研究[J].稀有金属材料与工程(英文),2018,47(10):3148~3154.[Zhao Wenhua,Wei Zhiqiang,Zhu Xueliang,Zhang Xudong,Feng Wangjun and Jiang Jinlong.Optical properties of Zn1-xCoxS nanorods synthesized by hydrothermal method[J].Rare Metal Materials and Engineering,2018,47(10):3148~3154.]
Optical properties of Zn1-xCoxS nanorods synthesized by hydrothermal method
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Received:January 12, 2017  Revised:August 23, 2018
DOI:
Key words: Co doped  ZnS  Hydrothermal  Microstructure  Optical properties
Foundation item:国家自然科学基金资助项目(51261015);甘肃省自然科学基金资助项目(1308RJZA238)
Author NameAffiliation
Zhao Wenhua,Wei Zhiqiang,Zhu Xueliang,Zhang Xudong,Feng Wangjun and Jiang Jinlong  
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Abstract:
      Co doped Zn1-xCoxS nanorods with different concentration ratio (x=0, 0.01, 0.03, 0.05 and 0.07) were successfully synthesized by hydrothermal method using ethylenediamine as a modifier. The crystal microstructure, morphology and optical properties of the samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray energy dispersive spectrometry (XEDS), Ultraviolet–visible Diffuse Reflectance spectroscopy (UV–vis DRS), photoluminescence spectra (PL) and Fourier transform Infrared spectroscopy (FTIR). The experiment results show that all samples synthesized by this method possess wurtzite structure with good crystallization, which indicates that all Co2+ successfully substituted for the lattice site of Zn2+ and generate single-phase Zn1-xCoxS. The morphology is one-dimensional rod-like shape with good dispersion. The the grain size increases, the cell volume decreases and the lattice constant occurs shrink with the increase of Co content. UV–vis spectra reveals the band gap of doped Zn1-xCoxS nanorods occurs red shift compare to that of the pure ZnS. PL spectra shows that the samples have obvious violet (402nm), blue (470nm, yellow (600nm) and infrared (826nm) emission peaks, the luminescence intensity decreases with the increase of the Co doping concentration.The FTIR spectrum shows that the absorption peak position does not change with the increase of the Co doping concentration.