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Harvesting Triplet Excitons from Fluorescent Blue Emitters in White Organic Light‐Emitting Diodes
Author(s) -
Schwartz G.,
Pfeiffer M.,
Reineke S.,
Walzer K.,
Leo K.
Publication year - 2007
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.200700641
Subject(s) - oled , common emitter , materials science , phosphorescence , exciton , fluorescence , optoelectronics , iridium , diode , color rendering index , white light , optics , nanotechnology , physics , chemistry , biochemistry , layer (electronics) , quantum mechanics , catalysis
A novel concept for white organic light emitting diodes (OLEDs) enabling the utilization of all electrically generated excitons for light generation is introduced. The key feature is a fluorescent blue emitter with high triplet energy, rendering it possible to harvest its triplet excitons by letting them diffuse to an orange phosphorescent iridium complex.