Synthesis of S-doped hierarchical ZnO nanostructures via hydrothermal method and their optical properties
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- 作者：Jun Yang ; Chao Xu ; Ting Ye ; Yongqian Wang…
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：28
- 期：2
- 页码：1785-1792
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
- 出版者：Springer US
- ISSN：1573-482X
- 卷排序：28
文摘
Herein, hierarchical flower-like ZnO nanostructures and S-doped ZnO flower-like hierarchical nanostructures composed of porous nanosheets were synthesized via a one-step hydrothermal method. In this method, Zn(NO3)2·6H2O was used as a precursor and CS(NH2)2 was the dopant. Field emission scanning electron microscope (FESEM), Energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), UV–Vis absorption spectra and photoluminescence spectra (PL) were used to characterize the samples. It demonstrates that small portions of S are successfully incorporated into the lattice of the ZnO nanostructures. The incorporation of S into ZnO is supported by broadening and lower Bragg angle shift in XRD pattern and EDS analysis. Cell Parameters of hierarchical flower-like S-doped ZnO nanostructures are obtained from Rietveld Analysis. The results show that the molar ratio of Zn and S determines the structure, surface morphology and optical properties of the samples significantly. PL spectra show that the effective S doping enhances the green emission and suppresses the near band gap emission.