SEMICONDUCTOR MATERIALS

Synthesis of ZnS whiskers and their photoluminescence properties

Du Yuanyuan, Jie Wanqi and Li Huanyong

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Abstract: ZnS whiskers were successfully synthesized by the chemical vapor deposition method with the assistance of CuS micro-spheres. The composition, morphology and structure of the samples were characterized by X-ray diffraction, X-ray energy dispersive spectroscopy, scanning electron microscopy, and the temperature-dependent photoluminescence (PL) spectrum over a temperature range from 10 to 250 K was studied. The results show that the as-synthesized ZnS whiskers have an average length of 0.3 mm and diameter of 2.5 µm with a cubic zinc-blende structure. There exist three emission bands in the blue, green and yellow regions, and the emission mechanism is discussed. As the temperature increases, the temperature-dependent PL spectrum shows anomalous behavior, where distinct inverted V-shaped characters of blue and green emission integrated intensity and an inconspicuous S-shape of blue emission peak energy are observed. The transition mechanism is discussed.

Key words: chemical vapor deposition ZnS whiskers anomalous luminescence

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    Received: 18 August 2015 Revised: 18 March 2009 Online: Published: 01 August 2009

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      Du Yuanyuan, Jie Wanqi, Li Huanyong. Synthesis of ZnS whiskers and their photoluminescence properties[J]. Journal of Semiconductors, 2009, 30(8): 083005. doi: 10.1088/1674-4926/30/8/083005 Du Y Y, Jie W Q, Li H Y. Synthesis of ZnS whiskers and their photoluminescence properties[J]. J. Semicond., 2009, 30(8): 083005. doi:  10.1088/1674-4926/30/8/083005.Export: BibTex EndNote
      Citation:
      Du Yuanyuan, Jie Wanqi, Li Huanyong. Synthesis of ZnS whiskers and their photoluminescence properties[J]. Journal of Semiconductors, 2009, 30(8): 083005. doi: 10.1088/1674-4926/30/8/083005

      Du Y Y, Jie W Q, Li H Y. Synthesis of ZnS whiskers and their photoluminescence properties[J]. J. Semicond., 2009, 30(8): 083005. doi:  10.1088/1674-4926/30/8/083005.
      Export: BibTex EndNote

      Synthesis of ZnS whiskers and their photoluminescence properties

      doi: 10.1088/1674-4926/30/8/083005
      • Received Date: 2015-08-18
      • Accepted Date: 2008-12-18
      • Revised Date: 2009-03-18
      • Published Date: 2009-07-31

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