高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (12): 1419.

• 研究论文 • 上一篇    下一篇

7,7,8,8-四氰基对苯醌二甲烷的光伏-气敏特性

江雷, 王德军, 刘旺, 柴向东, 李铁津   

  1. 吉林大学化学系, 130023
  • 收稿日期:1990-08-11 出版日期:1990-12-24 发布日期:1990-12-24
  • 通讯作者: 王德军
  • 基金资助:

    国家自然科学基金

The Surface Photovoltage and Gas Sensitive Properties of 7,7,8,8-Tetracyanoquinodimethane

Jiang Lei, Wang De-jun, Liu Wang, Chai Xiang-dong, Li Tie-jin   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1990-08-11 Online:1990-12-24 Published:1990-12-24

PDF (PC)

被引次数

10

摘要： 用表面光电压谱技术研究了7,7,8,8-四氰基对苯醌二甲烷多晶的光伏-气敏特性。结果表明,在较高真空度条件下,该化合物有两类不同的表面光电压响应峰,分别位于390nm(P1)和480nm(P2)。探针气体吸附证明,P1表现出较强的受体性,而P2则显示出给体性质。给体性分子与该化合物的∏键轨道作用,而受体分子与其C≡N端基作用。

关键词: 表面光电压, 气敏, 吸附

Abstract: In this paper, the surface photovoltage technique (SPV) was applied to the study of the pho-tovoltic and gas sensitive properties of 7,7,8,8-tetracyanoquinodimethane polycrystal. It was found that SPVshowed two peaks at 390 nm(P1) and 480 nm(P2) in the ultraviolet-visible region, and they are opposite in phase. The results of gaseous adsorption reveals that P1 shows a characteristics of acceptor, while P2 shows that of donor. During the adsorption, the donor gas interacts with conjugate H* orbital, while the acceptor gas with C≡Nradical.

Key words: Surface photovoltage, Gas sensitive, Adsorption

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