Simple heteroatom engineering for tuning the triplet energy of organometallic host materials for red, green and blue phosphorescent organic light-emitting diodes.
Simple heteroatom engineering for tuning the triplet energy of organometallic host materials for red, green and blue phosphorescent organic light-emitting diodes.
复制标题
DOI：
10.1039/c3cc40629f
复制
发表时间：
2013-04
影响因子：
4.9
通讯作者：
C. Oh;C. Lee;Jun Yeob Lee
中科院分区：
文献类型：
--
作者：
C. Oh;C. Lee;Jun Yeob Lee
用唑类三重态主体材料研究了Be配合物的三重态能量从2.48 eV到2.94 eV的调谐，这仅仅是通过简单地改变配体结构中的杂原子来实现的。合成了三种含唑类配体的铍金属有机基质材料，可作为红色到深蓝色磷光有机电致发光器件的基质材料。使用Be配合物在红色、绿色、蓝色和深蓝色器件中获得了高的量子效率。特别地，在蓝色磷光有机发光二极管中实现了26.1%的高量子效率。
Triplet energy tuning from 2.48 eV to 2.94 eV by just a simple change of heteroatom in the ligand structure of Be complexes was studied using azole based triplet host materials. Three Be organometallic host materials with azole type ligands were synthesized and could be used as the host materials from red to deep blue phosphorescent organic light-emitting diodes. High quantum efficiency was obtained in red, green, blue and deep blue devices using the Be complexes. In particular, a high quantum efficiency of 26.1% was achieved in blue phosphorescent organic light-emitting diodes.