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LED to LEC Transition Behavior in Polymer Light‐Emitting Devices
Author(s) -
Shao Yan,
Bazan Guillermo C.,
Heeger Alan J.
Publication year - 2008
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.200702325
Subject(s) - materials science , brightness , optoelectronics , cathode , work function , polymer , light emitting diode , glass transition , nanotechnology , layer (electronics) , optics , composite material , electrical engineering , physics , engineering
LED to LEC transition behavior is demonstrated in polymer hybrid light‐emitting devices. By utilizing both mobile ions in the polymer layer and a low‐work‐function cathode for electron injection, we observe and investigate the transition from LED to LEC behavior. These hybrid light‐emitting devices demonstrate fast turn‐on, low operating voltage, high brightness, and long operating lifetime.