Highly efficient thermally activated delayed fluorescence emitters with a small singlettriplet energy gap and large oscillator strength

Yuta Sagara, Katsuyuki Shizu, Hiroyuki Tanaka, Hiroshi Miyazaki, Kenichi Goushi, Hironori Kaji, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

A strategy for designing highly efficient thermally activated delayed fluorescence (TADF) emitters was reported. TADF emitters with donoracceptordonor (D-A-D)-type structures showed highly efficient TADF because of their small singlettriplet energy gap and large oscillator strength. An organic lightemitting diode containing a D-A-D-type TADF emitter, cis-BOX2, exhibited a high external electroluminescence quantum efficiency of 17.6%.

Original languageEnglish
Pages (from-to)360-362
Number of pages3
JournalChemistry Letters
Volume44
Issue number3
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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