CRCU

Chemical Research in Chinese Universities ›› 2000, Vol. 16 ›› Issue (4): 328-333.

• Articles • Previous Articles     Next Articles

Energy Band Structure of Alq3/TCAQ Heterostructure Complex Film Determined by Surface Photovoltage Spectroscopy(SPS)

CAO Ya-an1, SONG Qing2, MENG Qing-ju2, CAO Chang-sheng2, CHEN Chun-hai2, BAI Yu-bai2, LI Tie-jin2, YAO Jian-nian1   

  1. 1. Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China;
    2. Department of Chemistry, Jilin University, Changchun 130023, P. R. China
  • Received:1999-11-15 Online:2000-12-24 Published:2011-09-09
  • Supported by:

    Supported by the National Natural Science Foundation of China(No. 59620167).

PDF (PC)

Abstract: 8-Hydroxyquinoling aluminum (Alq3) and 11, 11, 12, 12-tetracyano-9, 10-anthraquino dimethane(TCAQ) monolayer films and their heterostructure complex films were prepared by a vacuum deposition method.By means of surface photovoltage spectroscopy (SPS) and electric field-induced surface photovoltage spectroscopy (EFISPS), the band gaps of TCAQ and Alq3 monolayer films and the properties of the Alq3/TCAQ bilayer film were investigated.By analysing the mechanism and the results of the SPSand the EFISPS, a reasonable energy band structure of the Alq3/TCAQ complex film was roughly determined.

Key words: Alq3, TCAQ, Complex film, SPS, Energy band structure