Iridium complexes with cyclometalated 2-cycloalkenylpyridine ligands as highly efficient emitters for organic light-emitting diodes

作者：Kang Dong Min; Kang Jae Wook; Park Jong Won; Jung Sung Ouk; Lee Se Hyung; Park Hyung Dol; Kim Yun Hi; Shin Sung Chul^*; Kim Jang Joo; Kwon Soon Ki

来源：Advanced Materials, 2008, 20(10): 2003-+.

DOI：10.1002/adma.200702558

Iridium complexes containing cyclometalated 2-cyclohexenylpyridine derivatives with rigid and bulky cyclohexene units are synthesized, and found to be highly efficient materials in EL devices (see figure). Devices based on these iridium complexes emit yellowish- green light with the very high external quantum efficiency of 18.7%.

• 出版日期2008-5-19