Thermally activated delayed fluorescence (TADF) from Sn4 +-porphyrin complexes and their application to organic light emitting diodes- Novel pathway for high efficiency electroluminescence

Ayataka Endo, Mai Ogasawara, Atsushi Takahashi, Yoshimine Kato, Chihaya Adachi

Research output: Contribution to journalConference article


We developed six Sn4+-porphyrin complexes showing thermally activated delayed fluorescence (TADF). The TADF intensities were increased with an increase of temperature owing to acceleration of the reverse intersystem crossing from triplet to singlet excited states by heat activation. Further, we demonstrate TADF under electrical excitation. We believe that TADF will provide novel light-emitting mechanism which significantly enhances electroluminescence quantum efficiency.

Original languageEnglish
Pages (from-to)23-25
Number of pages3
JournalSID Conference Record of the International Display Research Conference
Publication statusPublished - Dec 1 2008
Event28th International Display Research Conference, IDRC'08 - Orlando, FL, United States
Duration: Nov 4 2008Nov 6 2008


All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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