Iridium complexes bearing paraphenylene or tetraphenylmethane ligands as novel emitting materials

Chie Honda, Kazuo Takimiya, Tetsuo Otsubo, Yoshio Aso

研究成果: Paper査読

抄録

We synthesized novel iridium complexes bearing paraphenylene or tetraphenylmethane ligands. The solution absorption spectra of 3a-c show an MLCT band together with the local excitation transitions of their ligands. Solution emission spectra are red-shifted and weakened as compared to that of Ir(ppy)3. This result indicates that the introduced π-conjugated groups markedly affected the photophysical decay process. In contrast to the case of Ir(ppy)3, the film emission spectra of 3a-c are observed because of prevention of concentration quenching due to the bulky ligand groups. Organic electroluminescence devices using the iridium complexes show green emission.

本文言語English
ページ数1
出版ステータスPublished - 2005 12 1
外部発表はい
イベント54th SPSJ Annual Meeting 2005 - Yokohama, Japan
継続期間: 2005 5 252005 5 27

Other

Other54th SPSJ Annual Meeting 2005
国/地域Japan
CityYokohama
Period05/5/2505/5/27

ASJC Scopus subject areas

  • 工学(全般)

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