Positively Charged Iridium(III) Triazole Derivatives as Blue Emitters for Light-Emitting Electrochemical Cells

被引：248

作者：

Mydlak, Mathias ^{[1
,2
]}

Bizzarri, Claudia ^{[1
,2
]}

Hartmann, David ^{[3
]}

Sarfert, Wiebke ^{[3
]}

Schmid, Guenter ^{[3
]}

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] Siemens AG, Corp Technol, CTMM1, D-91058 Erlangen, Germany

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 11期

关键词：

TURN-ON TIMES; ELECTROLUMINESCENT DEVICES; PHOTOPHYSICAL PROPERTIES; SINGLE-LAYER; TRIS(2,2'-BIPYRIDINE)RUTHENIUM(II) COMPLEXES; STRUCTURAL-CHARACTERIZATION; RUTHENIUM COMPLEX; ANCILLARY LIGAND; EXCITED-STATES; PHOSPHORESCENT;

D O I：

10.1002/adfm.201000223

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cationic blue-emitting complexes with (2,4-difluoro)phenylpyridine and different 1,2,3-triazole ligands are synthesized With different counterions. The influence of the substituents on the triazole ligand is investigated as well as the influence of the counterions:The substituents do not change the emission energy but, in some cases, slightly the excited-state lifetimes and the emission quantum yields. The excited state lifetimes, in apolar solvents are slightly dependent on the nature of the counterion. A crystal structure of one of the compounds confirms the geometry and symmetry postulated on the basis of the other spectroscopic data Light-emitting electrochemical cell devices are prepared and the recorded emission is the bluest with the fastest response time ever reported for iridium complexes.

引用

页码：1812 / 1820

页数：9

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