Cyclometalated Platinum Complexes with Luminescent Quantum Yields Approaching 100%

被引：139

作者：

Turner, Eric ^{[1
]}

Bakken, Nathan ^{[1
]}

Li, Jian ^{[1
]}

机构：

[1] Arizona State Univ, Tempe, AZ 85287 USA

来源：

INORGANIC CHEMISTRY | 2013年 / 52卷 / 13期

基金：

美国国家科学基金会;

关键词：

EXCITED-STATE PROPERTIES; LIGHT-EMITTING DEVICES; IR(III) COMPLEXES; PHOSPHORESCENCE EFFICIENCY; TRIPLET EMITTERS; PT(II) COMPLEXES; EMISSION; LIGANDS; OXYGEN; DIODES;

D O I：

10.1021/ic302490c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new class of cyclornetalated tetradentate platinum complexes of the type Pt[(NC)-C-boolean AND-O-LL'] was synthesized and characterized. (NC)-C-boolean AND is a cYclmnetalating ligand such as phenyl-pyrazole (ppz), phenyl-methylimidazole (pmi), or phenyl-pyridine (ppy) and LL' is an ancillary ligand such as phenoxyl-pyridine (Popy) The complexes in this series are highly luminescent, emitting blue to green light in solution with quantum efficiencies ranging from 0.39 to 0.64 and luminescent lifetimes from 2 to 9 mu s. When doped in a poly( methyl nnethacrylate) (PMMA) thin film, measured quantum efficiencies increase to 0.81-0.97 with lifetimes ranging from 4.5-10.4 mu s. One notable example, the metal complex PtOO3, emits green light with a luminescent quantum efficiency approaching 100% and achieves approximately 100% electron-to-photon conversion efficiency in device settings.

引用

页码：7344 / 7351

页数：8

共 57 条

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