Premium
60.1: Invited Paper : Tandem Hybrid White OLED Devices with Improved Light Extraction
Author(s) -
Tyan YuanSheng,
Rao YuanQiao,
Ren XiaoFan,
Kesel Raymond,
Cushman Thomas R.,
Begley William J.,
Bhandari Nikhil
Publication year - 2009
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3256941
Subject(s) - tandem , oled , extraction (chemistry) , materials science , phosphorescence , optoelectronics , white light , fluorescence , optics , chemistry , chromatography , nanotechnology , layer (electronics) , physics , composite material
A high‐efficacy white OLED device is reported. At 1,000 cd/m 2 , the device showed an efficacy of 56 lm/W. The color at (0.387, 0.389) was within the Energy Star tolerance quadrangle; the CRI at 83.6 exceeded the requirements. The device had a tandem hybrid architecture comprising a fluorescent blue‐emitting unit and a phosphorescent yellow‐red‐emitting unit. It also had an internal extraction enhancement structure that greatly enhanced the light extraction efficiency.