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Highly Efficient Polymer White‐Light‐Emitting Diodes Based on Lithium Salts Doped Electron Transporting Layer
Author(s) -
Huang Fei,
Shih PingI.,
Shu ChingFong,
Chi Yun,
Jen Alex K.Y.
Publication year - 2009
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.200802179
Subject(s) - materials science , doping , polymer , luminous efficacy , layer (electronics) , lithium (medication) , conjugated system , diode , oled , optoelectronics , molecule , electron , chemical engineering , photochemistry , nanotechnology , organic chemistry , composite material , medicine , chemistry , endocrinology , engineering , physics , quantum mechanics
A Li 2 CO 3 ‐doped water/alcohol‐soluble neutral conjugated polymer is used as the electron‐injection layer in a solution‐processed polymer OWLED with very high efficiency. A maximum forward viewing luminous efficiency of 36.1 cd A −1 and a power efficiency of 23.4 lm W −1 were achieved, values comparable to those reported for the state‐of‐the‐art vacuum deposited small ‐molecule OWLEDs.