高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (5): 866.

• 研究论文 • 上一篇    下一篇

银-四氰基对苯二醌二甲烷纳米线阵列的制备及其场发射性能

田飞1,2, 李苞1,2, 王春儒1   

    1. 中国科学院化学研究所, 北京 100190;
    2. 中国科学院研究生院, 北京 100049
  • 收稿日期:2008-07-27 出版日期:2009-05-10 发布日期:2009-05-10
  • 通讯作者: 王春儒, 男, 博士, 研究员, 博士生导师, 主要从事纳米材料的制备和性能研究, E-mail: crwang@iccas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号: 20573121)资助.

Preparation and Field Emission Capability of Silver Tetracyanoquinodimethane Nanowire Array

TIAN Fei1,2, LI Bao1,2, WANG Chun-Ru1*   

    1. Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
    2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2008-07-27 Online:2009-05-10 Published:2009-05-10
  • Contact: WANG Chun-Ru, E-mail: crwang@iccas.ac.cn

摘要:

采用多孔氧化铝模板法, 通过四氰基对苯二醌二甲烷(TCNQ)与金属Ag的化学反应, 制备了银-四氰基对苯二醌二甲烷(AgTCNQ)纳米线阵列. AgTCNQ的直径由多孔氧化铝模板的内孔直径决定, 而其长度则可由反应时间与多孔氧化铝膜模板的厚度来控制. 所制备的AgTCNQ纳米线阵列表面光滑, 直径均一, 具有良好的场发射特性.

关键词: 银-四氰基对苯二醌二甲烷(AgTCNQ), 场发射, 纳米线

Abstract:

The well-aligned silver 7,7,8,8-tetracyanoquinodimethane(AgTCNQ) nanowire array was prepared with the anodic aluminum oxide(AAO) template method. The size, length and morphology of AgTCNQ nanowires were well characterized via scanning electronic microscopy(SEM) and transmission electronic microscopy(TEM). It is revealed that the AgTCNQ nanowires are uniform and both the length and diameter are controllable. The field emission property of the AgTCNQ was studied and the result revealed that the template-synthesized AgTCNQ nanowire array had excellent field emission property. The turn-on electric field of electron emission is 1.51 V/μm, and the F-N enchancement factor is 21.4, which suggest that AgTCNQ nanowires are perfect candidates for field-emitting materials.

Key words: Silver 7,7,8,8-tetracyanoquinodimethane(AgTCNQ), Field emission, Nanowires

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