SEMICONDUCTOR MATERIALS

Influence of morphologies on the field emission performance of oriented ZnO nano-arrays

Wang Lingjie, Yang Zunxian, Lin Jinyang and Guo Tailiang

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Abstract: Different morphologies of comb-like ZnO and oriented ZnO nano-arrays such as ZnO nanoneedles and ZnO nanorods were synthesized by using flexible thermal evaporation method via simply adjusting the temperature and oxygen content. The ZnO nanorods arrays have the lowest turn-on field, highest current density and the largest emission efficiency owning to its good contact with the substrate and relatively weaker field screening effects. The experiments show that the morphologies and orientation of one-dimensional (1D) ZnO nanomaterials have considerable effects on the turn-on field and the emission current density, and the nanoarray also contributes to electrons emission. The results could be valuable for the application of ZnO nanorod arrays as cathode materials in field emission based devices.

Key words: ZnO

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    Received: 20 August 2015 Revised: 12 July 2011 Online: Published: 01 December 2011

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      Wang Lingjie, Yang Zunxian, Lin Jinyang, Guo Tailiang. Influence of morphologies on the field emission performance of oriented ZnO nano-arrays[J]. Journal of Semiconductors, 2011, 32(12): 123001. doi: 10.1088/1674-4926/32/12/123001 Wang L J, Yang Z X, Lin J Y, Guo T L. Influence of morphologies on the field emission performance of oriented ZnO nano-arrays[J]. J. Semicond., 2011, 32(12): 123001. doi: 10.1088/1674-4926/32/12/123001.Export: BibTex EndNote
      Citation:
      Wang Lingjie, Yang Zunxian, Lin Jinyang, Guo Tailiang. Influence of morphologies on the field emission performance of oriented ZnO nano-arrays[J]. Journal of Semiconductors, 2011, 32(12): 123001. doi: 10.1088/1674-4926/32/12/123001

      Wang L J, Yang Z X, Lin J Y, Guo T L. Influence of morphologies on the field emission performance of oriented ZnO nano-arrays[J]. J. Semicond., 2011, 32(12): 123001. doi: 10.1088/1674-4926/32/12/123001.
      Export: BibTex EndNote

      Influence of morphologies on the field emission performance of oriented ZnO nano-arrays

      doi: 10.1088/1674-4926/32/12/123001
      Funds:

      The National High Technology Research and Development Program of China (863 Program)

      • Received Date: 2015-08-20
      • Accepted Date: 2011-05-28
      • Revised Date: 2011-07-12
      • Published Date: 2011-11-23

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