Singlet energy transfer and singlet-singlet annihilation in light-emitting blends of organic semiconductors

A. Ruseckas, J. C. Ribierre, P. E. Shaw, S. V. Staton, P. L. Burn, I. D.W. Samuel

    研究成果: Contribution to journalArticle査読

    14 被引用数 (Scopus)

    抄録

    Excitation energy transfer from host to guest is studied in spin-cast blends of 4, 4′ -bis(N -carbazolyl)biphenyl (CBP) and a phosphorescent fac -tris(2-phenylpyridyl)iridium(III)-cored dendrimer using time resolved fluorescence. The kinetics of energy transfer are consistent with homogeneous dispersion of the dendrimers in the CBP host. Diffusion-controlled singlet-singlet exciton annihilation is observed in the CBP host at moderate excitation densities, similar to those encountered in high brightness light-emitting devices and organic lasers. The results are important for organic lighting and the understanding of exciton diffusion in guest-host systems for electrophosphorescence.

    本文言語英語
    論文番号183305
    ジャーナルApplied Physics Letters
    95
    18
    DOI
    出版ステータス出版済み - 2009

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)

    フィンガープリント 「Singlet energy transfer and singlet-singlet annihilation in light-emitting blends of organic semiconductors」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