两亲性卟啉－紫精化合物LB膜的光电性质  

PREPARATION AND PHOTOELECTRIC PROPERTIES OF PORPHYRINE-VIOLOGEN LANGMUIR-BLODGETT FILMS

作　　者：张爱东[1] 陈彰评[1] 吴萱阶[1] 

机构地区：[1]武汉大学化学系,华中师范大学

出　　处：《武汉大学学报（自然科学版）》1994年第3期73-78,共6页Journal of Wuhan University(Natural Science Edition)

基　　金：国家自然科学基金;湖北省自然科学基金

摘　　要：两亲性卟啉－紫精化合物具有分子内光电子转移体系．用ＬＢ膜技术在透明导电玻璃基片上制备成分子排列规则的超薄膜材料，并用两种光电池（导电玻璃／ＬＢ膜／Ｉ３，Ｉ－／导电玻璃，导电玻璃／ＬＢ膜／Ｈｇ探针）测量了ＬＢ膜的光量子产率和光电开关性能．作为分子光电二极管，其最大光量子产率为３．１７×１０－６，光电开关的响应起始时间和驰豫时间分别约为０．２和０．３ｓ，并具有较好的光电响应寿命．The LB films of a novel amphiphilic porphyrin-violgen which has intramolecular photoelectron transfer system were deposited on transparent electroconductive glass slids by LB films method, their photoelectric on-off properties and light photon yields were measured by two photochemical cells: SnO2/LB films/, I-/SnO2 and SnO2/LB films/Hg. As photoeleCtric diod, its maximum light quantum photon yield is 3. 17 ×10-6, response time and delayed time are 0. 2 and 0. 3 second respectively and has good photoeletric response life time.

关 键 词：卟啉-紫精 LB膜 光电性质 

分 类 号：O484.4[理学—固体物理]