芴-吩噻嗪衍生物共聚物的光电性能研究  

Optical and electrical properties of copolymers of fluorene and phenothiazine derivatives

作　　者：马小芬[1] 王辰[1] 杨利营[1] 陆燕[1] 刘嵩[1] 邓家春[1] 华玉林[1] 印寿根[1] 

机构地区：[1]天津理工大学材料物理研究所,天津300191

出　　处：《天津理工大学学报》2006年第4期1-4,共4页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(60276027;50503017);天津市自然科学基金(033800311);教育部科技研究重点资助项目(205007);天津市高等学校科技发展基金(20030426;20041017)

摘　　要：采用紫外可见光谱、荧光光谱、循环伏安法等手段研究了两种芴与吩噻嗪衍生物的共聚物的光电性能.制备了结构为ITO聚/合物/Ca/A l的单层器件.电化学结果表明吩噻嗪单元的引入降低了聚芴的电离势(Ip),提高了电子亲和势(Ea),改善了材料的载流子传输能力.EL结果表明两种共聚物都发绿光,最大发光波长分别为552 nm和544 nm.The photo-physical, electroluminescence and electrochemical properties of two novel copolymers composed of fluorene and phenothlazine derivates are characterized by UV-Vis, PL, EL and cyclic vohammetry （CV）. Single layer structure devices with the configuration of ITO/polymers/Ca/A1 are fabricated. The CV results demonstrates that introduction of phenothiazine moiety into polyfluorenes can enhance electron affinity （Ea） and lower the ionic potential （lp）. Thus, the transportion ability of injected electrons and holes is improved. EL results reveale that all these two copolymers emit green light with the maximum peak at 552 nm and 544 nm respectively.

关 键 词：芴 吩噻嗪 吩噻嗪-5-亚砜 共聚物 电致发光 

分 类 号：O482.31[理学—固体物理] TN383.1[理学—物理]