Red-emission organic light-emitting diodes based on solution-processable molecules with triphenylamine core and benzothiadiazole-thiophene arms
Red-emission organic light-emitting diodes based on solution-processable molecules with triphenylamine core and benzothiadiazole-thiophene arms
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DOI：
10.1007/s11426-010-4189-3
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发表时间：
2011-04
期刊：
影响因子：
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通讯作者：
Jing Zhang;Yi Yang;Chang He;Yongfang Li
中科院分区：
文献类型：
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作者：
Jing Zhang;Yi Yang;Chang He;Yongfang Li
本文报道了以三苯胺（TPA）为核、苯并噻二唑-（4-己基）噻吩（BT-4 HT）为臂的可溶液处理有机分子的红光有机电致发光器件（OLED）。双臂分子B（TPA-BT-4 HT）和星形（三臂）分子S（TPA-BT-4 HT）都显示出纯的红色发射，峰值分别在646和657 nm。以S（TPA-BT-4 HT）为发光层的红色发光OLED显示出更高的最大亮度，约为100 nm。7794 cd/m2，最大电致发光效率为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/m2and a maximum EL efficiency of 0.91 cd/A.