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

Youngmin You, Cheng Guo An, Deug Sang Lee, Jang Joo Kim, Soo Young Park

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

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.

Original languageEnglish
Pages (from-to)4706-4713
Number of pages8
JournalJournal of Materials Chemistry
Volume16
Issue number48
DOIs
StatePublished - 2006

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