Unlocking the Potential of Pyrimidine Conjugate Emitters to Realize High‐Performance Organic Light‐Emitting Devices

A series of pyrimidine‐conjugated thermally activated delayed fluorescent (TADF) emitters is developed. Using a highly emissive green pyrimidine conjugate emitter and sophisticated device engineering, the optimized device operates on 2.2 V at 1 cd m−2 and exhibits a superior performance with an ηext...

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Veröffentlicht in:	Advanced optical materials 2017-01, Vol.5 (2), p.np-n/a
Hauptverfasser:	Komatsu, Ryutaro, Sasabe, Hisahiro, Nakao, Kouhei, Hayasaka, Yuya, Ohsawa, Tatsuya, Kido, Junji
Format:	Artikel
Sprache:	eng
Schlagworte:	Conjugates Devices donor–acceptor systems Efficiency Emissions Emissivity Emitters Fluorescence Optics Organic light emitting diodes organic light‐emitting devices (OLEDs) photochemistry Pyrimidines solid‐state emission
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Beschreibung
Zusammenfassung:	A series of pyrimidine‐conjugated thermally activated delayed fluorescent (TADF) emitters is developed. Using a highly emissive green pyrimidine conjugate emitter and sophisticated device engineering, the optimized device operates on 2.2 V at 1 cd m−2 and exhibits a superior performance with an ηext of over 25%, an ηp of over 110 lm W−1, and exceptionally low efficiency roll‐off.
ISSN:	2195-1071 2195-1071
DOI:	10.1002/adom.201600675