Luminescent Neutral Platinum Complexes Bearing an Asymmetric N∧N∧N Ligand for High-Performance Solution-Processed OLEDs

被引:94
作者
Cebrian, Cristina [1 ,2 ]
Mauro, Matteo [1 ,2 ]
Kourkoulos, Dimitrios [3 ]
Mercandelli, Pierluigi [4 ]
Hertel, Dirk [3 ]
Meerholz, Klaus [3 ]
Strassert, Cristian A. [1 ,2 ]
De Cola, Luisa [1 ,2 ]
机构
[1] Univ Munster, Inst Phys, D-48149 Munster, Germany
[2] Univ Munster, Ctr Nanotechnol CeNTech, D-48149 Munster, Germany
[3] Univ Cologne, Dept Chem, D-50939 Cologne, Germany
[4] Univ Milan, Dept Chem, I-20133 Milan, Italy
关键词
platinum complexes; tridentate ligand; asymmetric; luminescence; OLED; PT(II) COMPLEXES; PHOTOPHYSICS; PHOSPHORESCENCE; EFFICIENCY; EMISSION; CRYSTALS; PI;
D O I
10.1002/adma.201202123
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The synthesis and full characterization of new platinum complexes bearing a bulky asymmetric dianionic tridentate ligand is reported. The hindrance of the ligand prevents detrimental intermolecular interactions yielding to highly emitting species in both crystalline state and thin-film. Such properties prompted their successful use in solution-processed OLEDs, showing remarkable external quantum efficiency up to 5.6%. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:437 / 442
页数:6
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