Controlling Singlet–Triplet Energy Splitting for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Lin Song Cui, Hiroko Nomura, Yan Geng, Jong U.k. Kim, Hajime Nakanotani, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

219 Citations (Scopus)

Abstract

The development of efficient metal-free organic emitters with thermally activated delayed fluorescence (TADF) properties for deep-blue emission is still challenging. A new family of deep-blue TADF emitters based on a donor–acceptor architecture has been developed. The electronic interaction between donor and acceptor plays a key role in the TADF mechanism. Deep-blue OLEDs fabricated with these TADF emitters achieved high external quantum efficiencies over 19.2 % with CIE coordinates of (0.148, 0.098).

Original languageEnglish
Pages (from-to)1571-1575
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number6
DOIs
Publication statusPublished - 2017

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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