高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (7): 1342.

• 研究快报 • 上一篇    下一篇

偶氮吡啶分子结的制备、表征及电学性质初步研究

向娟1,3, 刘波1, 田景华1, 吴孙桃2, 胡家文1, 田中群1   

  1. 1. 厦门大学固体表面物理化学国家重点实验室,化学化工学院化学系,厦门361005;
    2. 厦门大学萨本栋微机电中心,厦门361005;
    3. 中南大学化学化工学院,长沙410083
  • 收稿日期:2004-12-09 出版日期:2005-07-10 发布日期:2005-07-10
  • 通讯作者: 田中群(1955年出生),男,教授,博士生导师,主要从事拉曼光谱、界面电化学及纳米电化学研究.E-mail:zqtian@xmu.edu.Cn E-mail:zqtian@xmu.edu.Cn
  • 基金资助:

    国家自然科学基金(批准号:20021002)资助.

Fabrication, Characterization and Electric Properties of a Gold Nanowire Containing 4,4'-Azopyridine Molecular Junction

XIANG Juan1,3, LIU Bo1, TIAN Jing-Hua1, WU Sun-Tao2, HU Jia-Wen1, TIAN Zhong-Qun1   

  1. 1. State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;
    2. Pen-Tung Sah Micro-electro-Mechanical Systems Research Center, Xiamen University, Xiamen 361005, China;
    3. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
  • Received:2004-12-09 Online:2005-07-10 Published:2005-07-10

PDF (PC)

被引次数

3

关键词: 分子结, 分子器件, 4, 4'-偶氮吡啶, 电场诱导自组装, 电流-电压特性

Abstract: A study on the fabrication and characterization of gold nanowires containing a 4,4'-azopyridine monolayer junctions was reported. Au nanowires were prepared by using a two-step alternative current(AC) electrodeposition inside the pores of AAO. Azopyridine molecules were adsorbed on the top of Au layer by self-assembly and electroless plating was done to introduce Au caps on the top of the SAMs. The top Au segments were prepared by using AC electrodeposition, too. The HRTEM image shows the thickness of the SAM is approximately 1.5 nm, which is in good agreement with the theoretical length of azopyridine. It is demonstrated that direct AC electrodeposition was more effective than chemical deposition on strengthening the electronic device. Utilizing 4,4'-azopyridine as the active component, current-voltage characterization of nanowires containing molecules was done at room temperature by a two-point probe method by using a Keithley 4200 semiconductor characterization system. A good conductive behavior at room temperature in this electronic device was observed.

Key words: Molecular junction, Molecular device, 4,4'-Azopyridine, Electric-field induced self-assembly, Current-voltage characterization

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