物理化学学报 >> 2000, Vol. 16 >> Issue (04): 289-293.doi: 10.3866/PKU.WHXB20000401

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聚苯胺-TCNQ复合薄膜的微观结构与电学特性

李建昌, 宋延林, 薛增泉, 刘维敏, 江雷, 朱道本   

  1. 北京大学电子学系，北京 100871|中国科学院化学研究所，北京 100080
  • 收稿日期:1999-12-10 修回日期:2000-01-10 发布日期:2000-04-15
  • 通讯作者:

Microstructure and Electric Properties of Polyaniline-TCNQ Complex Thin Film Grown by Vacuum Evaporation

Li Jian-Chang, Song Yan-Lin, Xue Zeng-Quan, Liu Wei-Min, Jiang Lei, Zhu Dao-Ben   

  1. Department of Electronics,Peking University,Beijing 100871|Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080
  • Received:1999-12-10 Revised:2000-01-10 Published:2000-04-15
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关键词: 薄膜, 聚苯胺, 7, 7, 8, 8-四氰基对苯醌二甲烷(TCNQ), 真空蒸发沉积, 院子力显微镜(AFM), 扫描隧道显微镜(STM)

Abstract:

Polyaniline-7,7,8,8-tetracyanoquinodimethanane (PANI-TCNQ) complex thin films were successfully grown by vacuum evaporation. The atomic force microscope (AFM) images showed that the rough PANI film is loosely constructed from many large spherical clusters. While the PANI-TCNQ film, closely packed with many small powder-like clusters, is densified and flat. The microstructure of the complex film can be made better by vacuum annealing. Charge transfer, from PANI chains to TCNQ molecule, was observed from Fourier transfer infrared spectrum of the complex film. The charge transfer can be intensified by vacuum annealing. The relationship between the microstructure and the electric properties of the film was discussed.

Key words: Thin film, Polyaniline, TCNQ, Vacuum evaporation, AFM, STM