硫杂芴-三苯胺树枝形分子的合成与电致发光特性研究  

Synthesis and the electroluminescent properties of new dentritic chromophores based on dibenzothiophene-center

作　　者：周懋怡[1] 王筱梅[1] 蒋宛莉[2] 王德强[1] 

机构地区：[1]苏州大学材料科学与工程学院,江苏苏州210021 [2]山东大学晶体材料国家重点实验室,山东济南250100

出　　处：《功能材料》2008年第9期1420-1422,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50673070);全国优秀博士学位论文作者专项基金资助项目(200333)

摘　　要：选择硫杂芴为π-中心、三苯胺为"枝",合成了新型硫杂芴-三苯胺树枝形分子-2,8-双-[4-三苯胺乙烯基-4’,4’’-二(三苯胺乙烯基)]硫杂芴(简称ST-G2),进行了核磁共振谱和质谱表征。以硫芴-三苯胺树枝形分子(简称ST-G2)为发光层,制备了结构为ITO/TCTA/ST-G2/BCP/Mg∶Ag的3层发光器件,测试了器件的电致发光性能。该器件在6V开启,12V电压下亮度和效率接近1000cd/m2和0.2lm/W。The synthesis of new dendritic chromophores with dibenzothiophene as molecular focal point bearing multibranched triphenylamine unit at the periphery （named as ST-G2） was reported. The electroluminescence device （ITO/TCTA/emitting layer/BCP/Mg ： Ag） based on 2,8-bis{ E-4′,4″-di-（E-4-（N,N-diphenylamino） styryl）-E-4-（N,N-diphenylamino） styryl} dibenzothiophene as emitting layer have been designed and prepared. Current efficiency, power efficiency, and brightness of the device have been measured. The brightness about 1000cd/m^2 and the power efficiency of 0.21m/W were observed.

关 键 词：有机电致发光 硫芴 三苯胺树枝形分子 

分 类 号：O64[理学—物理化学]