Thermally activated delayed fluorescence from a spiro-diazafluorene derivative

Hiroshi Ohkuma, Tetsuya Nakagawa, Katsuyuki Shizu, Takuma Yasuda, Chihaya Adachi

Research output: Contribution to journalReview articlepeer-review

65 Citations (Scopus)


A spiro compound DPAA-AF combining an electronaccepting diazafluorene unit and an electron-donating bis(diphenylamino) acridane unit has been synthesized and used as an emitter in organic light-emitting diodes. DPAA-AF exhibits efficient thermally activated delayed fluorescence, and a device based on this compound emits blue-greenish electroluminescence with a maximum external quantum efficiency of 9.6%.

Original languageEnglish
Pages (from-to)1017-1019
Number of pages3
JournalChemistry Letters
Issue number7
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • General Chemistry


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