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P‐202: Novel Electron Transporter and Hole Injector for OLEDs with Improved Device Characteristics and Longer Lifetime
Author(s) -
Kathirgamanathan Poopathy,
Ganeshamurugan S.,
Kumaraverl M.,
Paramaswara G.,
Partheepan A.,
Ravichandran S.
Publication year - 2006
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 - 10.1889/1.2433691
Subject(s) - oled , injector , optoelectronics , materials science , diode , voltage , electron , electrical engineering , nanotechnology , physics , engineering , mechanical engineering , nuclear physics , layer (electronics)
Abstract The search for stable electron transporters and hole injectors has become particularly intense over the last 12 months as OLED manufacturers are poised to start production of OLED panels. We report here a proprietary electron transporter (E246), which reduces the operating voltage, increases the efficiency and the lifetime of OLEDs made of fluorescent or phosphorescent systems when compared with Alq3 as an electron transporter. We also report a novel proprietary hole injector (buffer, E9363) which also reduces the operating voltage, increases the efficiency and doubles the lifetime compared to CuPC. E246 has been validated on both ULVAC and Tokki vacuum evaporators. These two materials are now available commercially for display manufacturers.