Cyclometallated platinum(II) complexes of 1,3-di(2-pyridyl) benzenes for solution-processable WOLEDs exploiting monomer and excimer phosphorescence

被引：79

作者：

Mroz, Wojciech ^{[1
]}

Botta, Chiara ^{[1
]}

Giovanella, Umberto ^{[1
]}

Rossi, Ester ^{[2
,3
]}

Colombo, Alessia ^{[2
,3
]}

Dragonetti, Claudia ^{[2
,3
]}

Roberto, Dominique ^{[2
,3
,4
]}

Ugo, Renato ^{[2
,3
]}

Valore, Adriana ^{[4
]}

Williams, J. A. Gareth ^{[5
]}

机构：

[1] CNR, Ist Studio Macromol, I-20133 Milan, Italy

[2] Univ Milan, Dip Chim Inorgan Metallorgan & Anal Lamberto Mala, I-20133 Milan, Italy

[3] UdR INSTM Milano, I-20133 Milan, Italy

[4] CNR, Ist Sci & Tecnol Mol, I-20133 Milan, Italy

[5] Univ Durham, Dept Chem, Durham DH1 3LE, England

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 24期

关键词：

LIGHT-EMITTING-DIODES; ELECTROLUMINESCENT DEVICES; QUANTUM EFFICIENCY; HOLE TRANSPORT; EMISSION; POLYMER; LUMINESCENCE; PHOTOPHYSICS; LIGANDS; COLOR;

D O I：

10.1039/c1jm10193e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two cyclometallated platinum(II) complexes, N boolean AND C boolean AND N-5-fluoro-1,3-di(2-pyridyl) benzene platinum(II) chloride, FPtCl, and N boolean AND C boolean AND N-5-methyl-1,3-di(2-pyridyl) benzene platinum(II) isothiocyanate, MePtNCS, have been synthesized and characterized. Both complexes are highly efficient phosphorescent green emitters which can also display excimer emission in the red region. They have been studied as triplet emitters in solution-processed, multilayer organic light-emitting diodes (OLEDs), together with the known complex of 5-methyl-1,3-di(2-pyridyl) benzene, MePtCl, for comparison. The trend in efficiencies of the OLEDs prepared correlates with the charge-trapping properties of the complexes. The most efficiently emitting complex, FPtCl, was used as the dopant in a solution-processed white OLED, employing monomer and excimer emission.

引用

页码：8653 / 8661

页数：9

共 57 条

[1] High efficiency single dopant white electrophosphorescent light emitting diodes [J].