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Field emission properties of amorphous carbon nanodot arrays in a novel anodic aluminum oxide template by self-assembly technique

Zhang Peng-Ju Xu Liang Li Shuan-Kui Wang Jun Yan Peng-Xun Li Xu-Dong Wu Zhi-Guo

Field emission properties of amorphous carbon nanodot arrays in a novel anodic aluminum oxide template by self-assembly technique

Zhang Peng-Ju, Xu Liang, Li Shuan-Kui, Wang Jun, Yan Peng-Xun, Li Xu-Dong, Wu Zhi-Guo
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  • Received Date:  12 March 2009
  • Accepted Date:  07 July 2009
  • Published Online:  15 January 2010

Field emission properties of amorphous carbon nanodot arrays in a novel anodic aluminum oxide template by self-assembly technique

  • 1. (1)兰州大学物理科学与技术学院,兰州 730000; (2)兰州大学物理科学与技术学院,兰州 730000;中国科学院兰州化学物理研究所固体润滑国家重点实验室,兰州 730000; (3)兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州 730050; (4)兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州 730050;兰州大学物理科学与技术学院,兰州 730000

Abstract: Amorphous carbon nanodot arrays were successfully prepared through filtered cathodic arc plasma (FCAP) technique, and via a special widen process, the negative effect of the anion impurities distributed in the anodic aluminum oxide (AAO) template was avoided during carbon ions deposition. The morphology of the samples was studied by a field emission scanning electron microscopy (FESEM). The AAO template prepared by multi-steps combining anodization process and pore-widening process has special pore openings. The nanodot arrays are uniformly distributed and in good agreement with the AAO pore arrays. The diameter of the as-prepared nanodot is about 100 nm, and the density was estimated to be 1010 cm-2. Field emission properties of the nanodot arrays were investigated and a low threshold field of 37 V/mm at 10 mA/cm2 was obtained.

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