高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (6): 1010.

• 研究论文 • 上一篇    下一篇

三聚噻吩的表面光电压谱研究

曹昌盛1, 王策1, 曹亚安2, 史延慧1, 李铁津1   

  1. 1. 吉林大学化学系, 长春 130023;
    2. 中国科学院化学研究所, 北京 100101
  • 收稿日期:1999-08-24 出版日期:2001-06-24 发布日期:2001-06-24
  • 通讯作者: 王　策(1958年出生),女,博士,教授,从事高分子材料研究.
  • 基金资助:

    国家自然科学基金(批准号:5987009);国家攀登计划资助课题

Studies on the Surface Photovoltage Property of α-Terthiophene

CAO Chang-Sheng1, WANG Ce1, CAO Yaan2, SHI Yan-Hui1, LI Tie-Jin1   

  1. 1. Department of Chemistry, Jilin University, Changchun 130023, China;
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100101, China
  • Received:1999-08-24 Online:2001-06-24 Published:2001-06-24

PDF (PC)

被引次数

7

摘要： 采用表面光电压和电场诱导表面光电压技术研究了三聚噻吩在外电场作用下的电子运动行为.结合三聚噻吩的UV光谱、极化子概念以及前线轨道理论,指认了三聚噻吩能级跃迁性质,即380nm附近的峰为带-带跃迁峰,447,465和600nm附近的峰是与单极化子有关的电子跃迁;而在770和900nm附近的峰则是与双极化子有关的电子跃迁峰.

关键词: 三聚噻吩(&alpha, -3T), 极化子, 表面光电压谱(SPS), 电场诱导表面光电压(EFISPS)

Abstract: The behavior of the electron jumping of α-terthiophene under effect of electrical field has been investigated by means of SPSand EFISPS. Combining the result of UV-Vis spectra, the band band transition response peak(HOMO-LUMO) has been assigned and non-band-band transition response peaks have also been assigned according to the conception of polaron. For the SPSand EFISPSof α-3T, near 380 nm, it is band band transition absorption. Near 447, 465 and 600 nm, three different types of electron transitions which are related to energy levels of mono polaron occured. Near 770 and 900 nm, other two types of electron transition which related to bipolaron occured.

Key words: α-T Terthiophene(α-3T), Polaron, Surface photovoltage spectroscopy(SPS), Electric-field-induced surface photovoltage spectroscopy(EFISPS)

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