High performance organic light-emitting diodes based on thermally-activated delayed fluorescence materials

Research output: Contribution to journalReview articlepeer-review

Abstract

A brief review is given on the unique features of thermally activated delayed fluorescence (TADF). We demonstrate a novel pathway to open an ultimate electroluminescence (EL) efficiency by using simple aromatic compounds displaying efficient TADF molecules. We found that a proper design of organic molecules enables the formation of a small energy gap between singlet and triplet excited states, resulting in the enhanced T1 to S1 reverse intersystem crossing. We also demonstrate a novel pathway for highly efficient fluorescence-based light-emitting diodes by applying the concept of TADF as an exciton generation source.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalJournal of the Vacuum Society of Japan
Volume58
Issue number3
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Instrumentation
  • Surfaces and Interfaces
  • Spectroscopy

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