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Inherent interference‐filter polymer light‐emitting diodes
Author(s) -
Barta Piotr,
Birgerson Jonas,
Guo Shuwen,
Arwin Hans,
Salaneck William R.,
Zagórska Malgorzata
Publication year - 1997
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.19970090208
Subject(s) - materials science , electroluminescence , optoelectronics , interference (communication) , light emitting diode , interference filter , refractive index , light emission , optical filter , color gel , filter (signal processing) , diode , polymer , optics , layer (electronics) , wavelength , nanotechnology , computer science , telecommunications , channel (broadcasting) , physics , composite material , computer vision , thin film transistor
A global or “systems” approach to the design of polymer‐based light‐emitting devices is shown to be important for an understanding of the details of light emission from these devices. A self‐interference‐filter type of light‐emitting device with a very narrow spectral output–a prerequires for many applications but difficult to realize because of the typically broad electroluminescence emission spectrum–is described, in which color selection is achieved by the appropriate combination of layer thickness and values of refractive index of the components of the device structure.