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Solution‐Processed White Phosphorescent Tandem Organic Light‐Emitting Devices
Author(s) -
Chiba Takayuki,
Pu YongJin,
Kido Junji
Publication year - 2015
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.201501866
Subject(s) - phosphorescence , tandem , oled , materials science , phosphorescent organic light emitting diode , quantum efficiency , optoelectronics , white light , nanotechnology , optics , fluorescence , physics , layer (electronics) , composite material
Solution‐processed phosphorescent tandem organic light‐emitting devices (OLEDs) exhibit extremely high efficiencies (94 cd A −1 ) and 26% external quantum efficiency (EQE) at 5000 cd m −2 for green phosphorescent devices and 69 cd A −1 and 28% EQE at 5000 cd m −2 for white phosphorescent devices. Development of these highly efficient solution‐processed tandem‐OLEDs with inverted device structure paves the way to printable, low‐cost, and large‐area white lighting.