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作者:

Wang FengYing (Wang FengYing.) | Wang RuZhi (Wang RuZhi.) (学者:王如志) | Zhao Wei (Zhao Wei.) | Song XueMei (Song XueMei.) | Wang Bo (Wang Bo.) (学者:王波) | Yan Hui (Yan Hui.)

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Scopus SCIE

摘要:

Amorphous gallium nitride (a-GaN) films with thicknesses of 5 and 300 nm are deposited on n-Si (100) substrates by pulsed laser deposition (PLD), and their field emission (FE) properties are studied. It shows that compared with thicker (300 nm) a-GaN film, better FE performance is obtained on ultrathin (5 nm) a-GaN film with a threshold field of 0.78 V/A mu m, which is the lowest value ever reported. Furthermore, the current density reaches 42 mA/cm(2) when the applied field is 3.72 V/A mu m. These experimental results unambiguously confirm Binh's theoretical analysis (Binh et al. Phys Rev Lett, 2000, 85(4): 864-867) that the FE performance would be prominently enhanced with the coating of an ultra-thin wide band-gap semiconductor film.

关键词:

amorphous gallium nitride (a-GaN) field emission pulsed laser deposition (PLD) work function

作者机构:

  • [ 1 ] [Wang FengYing]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China
  • [ 2 ] [Wang RuZhi]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao Wei]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China
  • [ 4 ] [Song XueMei]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China
  • [ 5 ] [Wang Bo]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China
  • [ 6 ] [Yan Hui]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China

通讯作者信息:

  • 王如志

    [Wang RuZhi]Beijing Univ Technol, Coll Mat Sci & Engn, Thin Film Lab, Beijing 100124, Peoples R China

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来源 :

SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES

ISSN: 1009-2757

年份: 2009

期: 10

卷: 52

页码: 1947-1952

JCR分区:4

中科院分区:1

被引次数:

WoS核心集被引频次: 4

SCOPUS被引频次: 5

ESI高被引论文在榜: 0 展开所有

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