Issue 48, 2006
From the journal:

Journal of Materials Chemistry

Silicon-containing dendritic tris-cyclometalated Ir(iii) complex and its electrophosphorescence in a polymer host

Youngmin You,a   Cheng-Guo An,a   Deug-Sang Lee,b   Jang-Joo Kima  and  Soo Young Park*a  

* Corresponding authors

a School of Materials Science & Engineering, Seoul National University, San 56-1, Shillim-Dong, Kwanak-Gu, Seoul 151-744, Korea
E-mail: parksy@snu.ac.kr
Fax: +82-2-886-8331
Tel: +82-2-880-7479

b Central R&D center, Dongwoo FineChem Co., Ltd. 1177, Pyungtaek-Si, Kyunggi-Do, Korea

Abstract

In this paper, we present the synthesis and characterization of a new highly phosphorescent cyclometalated Ir(III) complex with a silane-based dendritic substituent. The Ir(III) complex showed 74 ± 3% of absolute phosphorescence quantum efficiency in the film state. In addition, efficient electrophosphorescence (32.8 cd A−1) employing an Ir(III) complex–poly(N-vinylcarbazole) system device is observed. Study of a series of electroluminescent, spectroscopic, and electrochemical data of the Ir(III) complex and the reference Ir(ppy)3 reveals superior performance of the new Ir(III) complex.

Graphical abstract: Silicon-containing dendritic tris-cyclometalated Ir(iii) complex and its electrophosphorescence in a polymer host

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Article information

DOI
https://doi.org/10.1039/B611288A
Article type
Paper
Submitted
04 Aug 2006
Accepted
03 Oct 2006
First published
25 Oct 2006

J. Mater. Chem., 2006,16, 4706-4713

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Silicon-containing dendritic tris-cyclometalated Ir(III) complex and its electrophosphorescence in a polymer host

Y. You, C. An, D. Lee, J. Kim and S. Y. Park, J. Mater. Chem., 2006, 16, 4706 DOI: 10.1039/B611288A

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