A Codeposition Route to CuI-Pyridine Coordination Complexes for Organic Light-Emitting Diodes

被引：240

作者：

Liu, Zhiwei ^{[1
]}

Qayyum, Munzarin F. ^{[2
]}

Wu, Chao ^{[1
]}

Whited, Matthew T. ^{[1
]}

Djurovich, Peter I. ^{[1
]}

Hodgson, Keith O. ^{[2
]}

Hedman, Britt ^{[3
]}

Solomon, Edward I. ^{[2
]}

Thompson, Mark E. ^{[1
]}

机构：

[1] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA

[2] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

[3] Stanford Univ, SLAC, Stanford, CA 94309 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 11期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

COPPER(I) IODIDE-PYRIDINE; THERMOCHROMIC LUMINESCENCE; CRYSTAL-STRUCTURE; I COMPLEXES; PHOTOLUMINESCENCE; CLUSTERS; LIGANDS; STATE;

D O I：

10.1021/ja1065653

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate a new approach for utilizing CuI coordination complexes as emissive layers in organic light-emitting diodes that involves in situ codeposition of CuI and 3,5-bis(carbazol-9-yl)pyridine (mCPy). With a simple three-layer device structure, pure green electroluminescence at 530 nm from a Cu(I) complex was observed. A maximum luminance and external quantum efficiency (EQE) of 9700 cd/m(2) and 4.4%, respectively, were achieved. The luminescent species was identified as [CuI(mCPy)(2)](2) on the basis of photophysical studies of model complexes and X-ray absorption spectroscopy.

引用

页码：3700 / 3703

页数：4

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