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Adv Mater. 2014 Aug 13;26(30):5198-204. doi: 10.1002/adma.201401393. Epub 2014 Jun 5.

Novel thermally activated delayed fluorescence materials-thioxanthone derivatives and their applications for highly efficient OLEDs.

Author information

1
Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.

Abstract

Thermally activated delayed fluorescence emitters with small energy gap between the triplet and singlet (ΔEST ), TXO-PhCz and TXO-TPA, have been successfully synthesized by combining a hole-transporting TPA/PhCz moiety and an electron-transporting TXO moiety. Both compounds display efficient solid-state luminescence with an efficient up-conversion of the triplet to singlet. OLEDs based on them exhibt high performance up to 21.5%, which is among the best reported for OLEDs.

KEYWORDS:

aggregation-induced emission; organic light-emitting devices; solvatochromic; thermally activated delayed fluorescence; thioxanthone

PMID:
24903266
DOI:
10.1002/adma.201401393

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