Fundamental guidelines for the active control of the molecular orientation of heteroleptic iridium complexes enabled by carbazole-based host materials

Author:

Arai Hiroki1,Yoshida Naoto1,Sasabe Hisahiro123ORCID,Sagae Yuki1,Hoshi Keigo1,Yokoyama Daisuke12ORCID,Kido Junji123

Affiliation:

1. Department of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

2. Research Center of Organic Electronics (ROEL), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

3. Frontier Center for Organic Materials (FROM), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

Abstract

The transition dipole moments of a heteroleptic iridium complex are actively controlled by using cyano-containing carbazole-based hosts. The orientation ratio (Θ) is improved from 65% to 78%. The Θ value is correlated with the Tg value of host material.

Funder

Japan Society for the Promotion of Science

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,General Chemistry

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