Phosphorescence quenching of fac-tris(2-phenylpyridyl)iridium(III) complexes in thin films on dielectric surfaces

J. C. Ribierre, A. Ruseckas, S. V. Staton, K. Knights, N. Cumpstey, P. L. Burn, I. D.W. Samuel

    研究成果: Contribution to journalArticle査読

    2 被引用数 (Scopus)

    抄録

    We study the influence of the film thickness on the time-resolved phosphorescence and the luminescence quantum yield of fac-tris(2-phenylpyridyl)iridium(iii) [Ir(ppy)3]-cored dendrimers deposited on dielectric substrates. A correlation is observed between the surface quenching velocity and the quenching rate by intermolecular interactions in the bulk film, which suggests that both processes are controlled by dipole-dipole interactions between Ir(ppy)3 complexes at the core of the dendrimers. It is also found that the surface quenching velocity decreases as the refractive index of the substrate is increased. This can be explained by partial screening of dipole-dipole interactions by the dielectric environment.

    本文言語英語
    ページ(範囲)3575-3580
    ページ数6
    ジャーナルPhysical Chemistry Chemical Physics
    18
    5
    DOI
    出版ステータス出版済み - 2016

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)
    • Physical and Theoretical Chemistry

    フィンガープリント 「Phosphorescence quenching of fac-tris(2-phenylpyridyl)iridium(III) complexes in thin films on dielectric surfaces」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル