Exciton quenching behavior of thermally activated delayed fluorescence molecules by charge carriers

Atula S.D. Sandanayaka, Kou Yoshida, Toshinori Matsushima, Chihaya Adachi

研究成果: Contribution to journalArticle査読

14 被引用数 (Scopus)

抄録

The quenching of singlet excitons by injected charge carriers in molecules that display thermally activated delayed fluorescence (TADF) was investigated using time-resolved transient photoluminescence (PL) techniques. Injected electrons did not affect the excitons; however, injected holes caused significant quenching. Using a rate-equation analysis, the hole-induced exciton quenching rate was determined to be between 10-11 and 10-12 cm3 s-1. Interestingly, the TADF emission component was enhanced in the presence of injected holes, plausibly due to a reduction of the singlet-exciton energy level.

本文言語英語
ページ(範囲)7631-7636
ページ数6
ジャーナルJournal of Physical Chemistry C
119
14
DOI
出版ステータス出版済み - 4 9 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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