廖良生教授课题组
FUNSOM
导师语录


1.现代社会竞争激烈,因此,每个学生一定要提高自我核心竞争力;



2.每个学生要努力践行

“养天地正气,法古今完人“的苏大校训,力求将自己培养成德才兼备的现代青年;



3.我们要努力创造OLED技术的自主知识产权,在我国形成“养土鸡--喂土饲料--生土鸡蛋”的全自主产业链发展模式;



4.学术报告中所使用的PPT演示文稿,是报告人的学术面容。我们一定要认真学会如何作学术报告、如何准备高质量的演示文稿,为今后的事业发展,不断提高学术交流能力;




5.想问题时,要异想天开;做事情时,要脚踏实地。





18. B. Wang, L. Zhang, Y. Hu, X.B. Shi, Z.K. Wang, L.S. Liao, J. Mater. Chem. C, 2016.
浏览数:32

Doped hole injection bilayers for solution processable blue phosphorescent organic light-emitting diodes


Carrier injection plays an important role in determining the device performance of organic light-emitting diodes (OLEDs). 1,4,5,8,9,11-Hexaazatriphenylene hexacarbonitrile (HAT-CN) has been widely used as an effective material to promote the hole injection when fabricating vacuum deposited OLEDs. However, serious crystallization occurs in solution-processed HAT-CN films, which weakens its hole injection ability in OLEDs. Herein, we demonstrate a solution-processed composite film as the hole injection layer (HIL) in OLEDs developed by mixing HAT-CN with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ). The crystallization is suppressed effectively by optimizing the mixing ratio. In addition, a doping of HAT-CN:F4-TCNQ composite film contributes to a decreased hole injection barrier, which can be reflected from the current density–voltage curve. Furthermore, HAT-CN:F4-TCNQ is successfully combined with MoO3 doped copper phthalocyanine-3,4′,4′′,4′′′-tetra-sulfonated acid tetra sodium salt (TS-CuPc) as bi-HIL in solution-processable blue phosphorescent OLEDs, which exhibit a maximum current efficiency of 16.7 cd A−1.