物理化学学报 >> 1992, Vol. 8 >> Issue (04): 540-544.doi: 10.3866/PKU.WHXB19920423

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碘掺杂的3-乙基-5-[2-(3-乙基-2苯并噻唑啉基)亚乙基]罗丹宁的结构与电性能

常友明; 邓晓东   

  1. 中国科学院化学研究所,北京 100080
  • 收稿日期:1991-03-15 修回日期:1991-10-26 发布日期:1992-08-15
  • 通讯作者: 常友明

Studies on the Structures and Electrical Propertis of Iodine-Doped 3-Ethyl-5-(2-(3-Ethyl-2-Benzothiazolinylidene)-Ethylidene)-Rhodanine

Chang You-Ming; Deng Xiao-Dong   

  1. Institute of Chemistry, Academia Sinica, Beijing 100080
  • Received:1991-03-15 Revised:1991-10-26 Published:1992-08-15
  • Contact: Chang You-Ming

关键词: 碘掺杂, 结构, 相变, 电荷转移, 电性能

Abstract: The merocyanine dye 3-ethyl-5-(2-(3-ethyl-2-benzothiazolinylidene)-ethylidene)-rhodanine (BTER) known as Agfa-10 has been found to have a good photoconductivity as solution cast film. In this paper iodine-doped BTER was obtained by doping with iodine vapor. Its structure was investigated with the following characteristies.
1 The doped iodine had been excited as I_3~- anion.
2 Because the electron located on the sulphur atom was transferred to iodine, the charge transfer complex of (BTER-I_3) formed.
3 During the iodine doping process, BTER changed from α-form to β-modification. These had been identified by X-ray diffraction, VIS-absorption spectra and SEM picture.
4 From the volt-Ampere curve obtained from sandwich cell, when E≤2.2×10~(-1) V·cm~(-1), the room temperature electrical conductivity of BTER and BTER-I_3 were found to be 2.22×10~(-10) s·cm~(-1) and 2.6×10~(-7) S·cm~(-1), respectively.

Key words: Iodine-doped, Structure, Phsae transition, Charge transfer, Electric properties