Premium
Frequency‐Dependent, Alternating Current‐Driven, Field‐Induced Polymer Electroluminescent Devices with High Power Efficiency
Author(s) -
Chen Yonghua,
Xia Yingdong,
Smith Gregory M.,
Carroll David L.
Publication year - 2014
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.201402682
Subject(s) - electroluminescence , materials science , power (physics) , optoelectronics , field (mathematics) , alternating current , ferroelectricity , current (fluid) , polymer , dielectric , electrical engineering , engineering physics , matching (statistics) , voltage , computer science , nanotechnology , physics , engineering , mathematics , layer (electronics) , quantum mechanics , pure mathematics , composite material , statistics
A significant enhancement in power efficiency for alternating current‐driven field‐induced polymer electroluminescent devices is demonstrated by employing a high‐ k ferroelectric polymer dielectric through impedance matching of the device with the driving source. A peak power efficiency of 34.1 lm W –1 at a frequency of 65 kHz is achieved, which is 2 to 12 times higher than the previous highest reports.