Novel bipolar host for highly efficient green, yellow, orange, red and deep-red phosphorescent organic light-emitting devices
Novel bipolar host for highly efficient green, yellow, orange, red and deep-red phosphorescent organic light-emitting devices
复制标题
用于高效绿色、黄色、橙色、红色和深红色磷光有机发光器件的新型双极主体
DOI：
10.1007/s11426-017-9021-x
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发表时间：
2017-04-01
影响因子：
9.6
通讯作者：
Lee, Chun-Sing
中科院分区：
文献类型：
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作者：
Zheng, Cai-Jun;Liu, Chuan-Lin;Lee, Chun-Sing
设计并合成了一种以三苯胺为给电子体，以嘧啶为受电子体的新型双极性主体三(4-(嘧啶-5-基)苯基)胺(TPMTPA)。TPMTPA实现了优异的双极电荷传输特性，并具有足够高的三重态能级，可以敏化绿色、黄色、橙色、红色和深红色的荧光粉。以TPMTPA为基质制备了高性能的绿色、黄色、橙色、红色和深红色有机电致发光器件，其最大外量子效率分别为20.4%、17.6%、15.1%、15.3%和15.7%。这些结果表明，TPMTPA是一种多用途的高性能基质，可以容纳不同发光颜色的PhOLED。
A novel bipolar host tris(4-(pyrimidin-5-yl)phenyl)amine (TPMTPA) constructed by incorporating triphenylamine as the electron-donating core and pyrimidine as the electron-accepting peripheries was designed and synthesized. TPMTPA achieves excellent bipolar charge transport properties and has high enough triplet energy level to sensitize green, yellow, orange, red and deep-red phosphors. By using TPMTPA as a host, high performance green, yellow, orange, red and deep-red phosphorescent organic light-emitting devices (PhOLEDs) were demonstrated with maximum external quantum efficiencies of 20.4%, 17.6%, 15.1%, 15.3% and 15.7% respectively. These results suggested that TPMTPA is a versatile high performance host for PhOLEDs of different emission colors.