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Novel Efficient Blue Fluorophors with Small Singlet‐Triplet Splitting: Hosts for Highly Efficient Fluorescence and Phosphorescence Hybrid WOLEDs with Simplified Structure
Author(s) -
Zheng CaiJun,
Wang Jing,
Ye Jun,
Lo MingFai,
Liu XiaoKe,
Fung ManKeung,
Zhang XiaoHong,
Lee ChunSing
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201204724
Subject(s) - phosphorescence , singlet state , fluorescence , materials science , computer science , service (business) , optoelectronics , physics , optics , quantum mechanics , excited state , economy , economics
The exact hosts for F‐P hybrid WOLEDs have been first demonstrated following a new design strategy for blue fluorophors with small singlet‐triplet splitting. Two novel compounds DPMC and DAPSF exhibit efficient blue fluorescence, high triplet energies and good conductivities. These merits allow us to use new simplified device designs to achieve high efficiency, slow efficiency roll‐off and stable emission color.