Sub-microsecond TADF emission in D-D¤-A emitters

Morgan Auffray, Umamahesh Balijapalli, Jean Charles Maurice Ribierre, Youichi Tsuchiya, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A new series of donor-donor¤-acceptor molecules (D-D¤-A design) is introduced. Due to different molecular configurations of the emitters, multiple triplet states were detected and happen to drive one thermally activated delayed fluorescence (TADF) with very short lifetime of the order of nanoseconds. A longer TADF component of microsecond order was also observed, thus showing an interesting case of dual upconversion. These results reveal how TADF becomes efficient enough to overwhelm the prompt fluorescence with the assistance of vibrational and rotational motions.

Original languageEnglish
Pages (from-to)932-935
Number of pages4
JournalChemistry Letters
Volume49
Issue number8
DOIs
Publication statusPublished - Aug 5 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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