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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (9): 842-846. 上一篇    下一篇

研究论文

两亲性卟啉-紫精化合物LB膜的结构及光电性质研究

张爱东;吴萱阶;陈彰评;姜中兴;曹连欣;王群林   

  1. 武汉大学化学系;武汉大学分析测试中心
  • 发布日期:1995-09-15

Structure and photoelectric properties of LB films for amphiphilic porphyrine-viologen

ZHANG AIDONG;WU XUANJIE;CHEN ZHANGPING;JIANG ZHONGXING;CAO LIANXIN;WANG QUNLIN   

  • Published:1995-09-15

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本文制备了两亲性卟啉-紫精化合物的LB膜材料, 用π-A等温曲线、吸收光谱、小角和低角X射线衍射以及扫描隧道电镜(STM)等方法研究了LB膜的结构。结果表明, LB膜内分子排列是二维有序的超晶格结构, 卟啉环在基片上的排列呈"站立"状态。单个分子占有面积为1.15nm^2, 单层高度为2.35nm, 相邻裂间的距离为1.07nm。这种规则有序的两亲性卟啉-紫精化合物呈现出良好的光量子收率和光电响应特性。

关键词: 紫精类, Ｘ射线衍射分析, 光电性质, 卟啉, Ｌ-Ｂ膜, 湖北省自然科学基金, 扫描隧道电镜

The LB films of a novel Amphiphilic porphyrine-viologen compound were deposited on various slids (glass, silicon, graphite) and their structures were studied by π-A isotherm analysis, UV-absorption spectra, little and low angle X-ray diffraction and STM. The results showed that the LB films are oriented in superlattic structure. The molecular area, monolayer high are 1.15nm^2, 2.35nm respectively, the distance between agjacent rows is 1.07nm. The well oriented LB films showed higher light quantum photon yields and good photoelectric on-off characteristy.

Key words: VIOLOGENS, X-RAY DIFFRACTION ANALYSIS, PHOTOELECTRICAL PROPERTIES, PORPHYRIN, L-B MEMBRANE

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