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P‐185: High Efficiency Solution Processed Red Phosphorescent OLEDs Based on a Soluble Small Molecule Host with an Ir(piq) 3 Complex
Author(s) -
Park Tae Jin,
Jeong Su Hyeon,
Jeon Woo Sik,
Park Jung Joo,
Lee Yong Kyun,
Kwon Jang Hyuk,
Jang Jin
Publication year - 2007
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 - 10.1889/1.2785452
Subject(s) - oled , pedot:pss , phosphorescence , materials science , optoelectronics , molecule , electrical efficiency , luminance , power (physics) , chemistry , nanotechnology , optics , fluorescence , physics , organic chemistry , layer (electronics) , quantum mechanics
We demonstrate that solution processed high efficiency and saturated red phosphorescent OLEDs can be achieved using a soluble small molecule (SSM) as the host material. Two structures of ITO /PEDOT /interlayer /SSM:Ir(piq) 3 /LiF /Al and ITO /PEDOT /interlayer /SSM:Ir(piq) 3 /sublimated Balq /sublimated Alq3 /LiF /Al were employed as all soluble processed devices and hybrid devices, respectively. A 6.36 cd/A of maximum luminance efficiency and a 3.22 lm/W of maximum power efficiency were obtained in a hybrid device. The CIE coordinate was (0.67, 0.33).