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Iridium Complexes with Cyclometalated 2-Cycloalkenyl-Pyridine Ligands as Highly Efficient Emitters for Organic Light-Emitting Diodes

✍ Scribed by Dong Min Kang; Jae-Wook Kang; Jong Won Park; Sung Ouk Jung; Se-Hyung Lee; Hyung-Dol Park; Yun-Hi Kim; Sung Chul Shin; Jang-Joo Kim; Soon-Ki Kwon

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
136 KB
Volume
20
Category
Article
ISSN
0935-9648

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## Abstract Two blue‐emitting cationic iridium complexes with 2‐(1__H__‐pyrazol‐1‐yl)pyridine (pzpy) as the ancillary ligands, namely, [Ir(ppy)~2~(pzpy)]PF~6~ and [Ir(dfppy)~2~(pzpy)]PF~6~ (ppy is 2‐phenylpyridine, dfppy is 2‐(2,4‐difluorophenyl) pyridine, and PF~6~^−^ is hexafluorophosphate), have