两亲性卟啉-紫精化合物LB膜的结构及光电性质研究  

Structure and Photoelectric Properties of LB Films for Amphiphilic Porphyrine-Viologen

作　　者：张爱东[1] 吴萱阶[1] 陈彰评[1] 姜中兴[1] 曹连欣[2] 王群林[2] 

机构地区：[1]武汉大学化学系,武汉430072 [2]武汉大学分析测试中心,武汉430072

出　　处：《化学学报》1995年第9期842-846,共5页Acta Chimica Sinica

基　　金：国家自然科学基金;湖北省自然科学基金资助课题.

摘　　要：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,相邻列间的距离为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.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 1.15nm2, 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.

关 键 词：卟啉 紫精 LB膜 吸收光谱 X射线衍射 

分 类 号：O484.1[理学—固体物理]