Homoleptic Cyclometalated Iridium Complexes with Highly Efficient Red Phosphorescence and Application to Organic Light-Emitting Diode
作者:Akira Tsuboyama、Hironobu Iwawaki、Manabu Furugori、Taihei Mukaide、Jun Kamatani、Satoshi Igawa、Takashi Moriyama、Seishi Miura、Takao Takiguchi、Shinjiro Okada、Mikio Hoshino、Kazunori Ueno
DOI:10.1021/ja034732d
日期:2003.10.1
= 558-652 nm, and emission lifetimes tau = 0.74-4.7 micros. Bathochromic shifts of the Ir(thpy)(3) family [the complexes with 2-(thiophen-2-yl)pyridine derivatives] are observed by introducing appropriate substituents, e.g., methyl, trifluoromethyl, or thiophen-2-yl. However, Phi(p) of the red emissive complexes (lambda(max) > 600 nm) becomes small, caused by a significant decrease of the radiative
已经进行了一系列面部均质环金属化铱 (III) 配合物的磷光研究。所研究的配合物具有一般结构 Ir(III)(CN)(3),其中 (CN) 是单阴离子环金属化配体:2-(5-methylthiophen-2-yl)pyridinato, 2-(thiophen-2-yl) -5-三氟甲基吡啶基,2,5-二(噻吩-2-基)吡啶基,2,5-二(5-甲基噻吩-2-基)吡啶基,2-(苯并[b]噻吩-2-基)吡啶基, 2-(9,9-二甲基-9H-芴-2-基)吡啶基、1-苯基异喹啉基、1-(噻吩-2-基)异喹啉基或1-(9,9-二甲基-9H-芴-2-基)异喹啉。所有配合物在 298 K 甲苯中的发光特性如下:磷光量子产率 Phi(p) = 0.08-0.29,发射峰 lambda(max) = 558-652 nm,发射寿命 tau = 0.74-4.7 微米。通过引入适当的取代基,例如甲基、三氟甲基或噻吩-2-基,可以观察到