Rational Molecular Design for Deep-Blue Thermally Activated Delayed Fluorescence Emitters

Chin Yiu Chan, Lin Song Cui, Jong Uk Kim, Hajime Nakanotani, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

188 Citations (Scopus)


By simple modification of the functional groups on the donor unit, the thermally activated delayed fluorescence (TADF) properties of emitters can easily be manipulated. A series of deep blue to blue emissive TADF derivatives is developed, capable of deep-blue emissions from 403 to 460 nm in toluene. Deep-blue organic light-emitting diodes (OLEDs) based on this series of TADF emitters are fabricated, resulting in an electroluminescence peak at 428 nm and a high external quantum efficiency of up to 10.3%. One deep-blue OLED has achieved the commission internationale de l'eclairage (CIE) coordinates of (0.156, 0.063), which is among the best reported TADF performances for deep-blue OLEDs with CIEy < 0.07.

Original languageEnglish
Article number1706023
JournalAdvanced Functional Materials
Issue number11
Publication statusPublished - Mar 14 2018

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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