Red-emission organic light-emitting diodes based on solution-processable molecules with triphenylamine core and benzothiadiazole-thiophene arms  

作　　者：ZHANG Jing YANG Yi HE Chang LI YongFang 

机构地区：[1]Beijing National Laboratory for Molecular Sciences,CAS Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Science China Chemistry》2011年第4期695-698,共4页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (50633050,50803071 and 20721061)

摘　　要：We report red-emission organic light-emitting diodes (OLEDs) based on solution-processable organic molecules with triphenylamine (TPA) as core and benzothiadiazole-(4-hexyl)thiophene (BT-4HT) as arms.Bi-armed molecule B(TPA-BT-4HT) and star-shaped (tri-armed) molecule S(TPA-BT-4HT) both show pure red-emission peaked at 646 and 657 nm,respectively.The red-emission OLED with S(TPA-BT-4HT) as the emitting layer displays a higher maximum luminance of ca.7794 cd/m2 and a maximum EL efficiency of 0.91 cd/A.We report red-emission organic light-emitting diodes （OLEDs） based on solution-processable organic molecules with triphenylamine （TPA） as core and benzothiadiazole-（4-hexyl）thiophene （BT-4HT） as arms.Bi-armed molecule B（TPA-BT-4HT） and star-shaped （tri-armed） molecule S（TPA-BT-4HT） both show pure red-emission peaked at 646 and 657 nm,respectively.The red-emission OLED with S（TPA-BT-4HT） as the emitting layer displays a higher maximum luminance of ca.7794 cd/m2 and a maximum EL efficiency of 0.91 cd/A.

关 键 词：red-emission organic molecules solution processability OLEDS 

分 类 号：TN312.8[电子电信—物理电子学] TP3[自动化与计算机技术—计算机科学与技术]