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Light‐Absorption Phenomena in Novel Low‐Reflectance Cathodes for Organic Light‐Emitting Devices Utilizing Metal–Organic Mixtures
Author(s) -
Grandin H.M.,
Aziz H.,
Gardner S.,
Jennings C.,
Paine A.J.,
Norton P.R.,
Popovic Z.D.
Publication year - 2003
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.200305593
Subject(s) - materials science , cathode , absorption (acoustics) , surface plasmon resonance , layer (electronics) , metal , optoelectronics , reflectivity , diffuse reflection , nanoparticle , surface plasmon , optics , plasmon , nanotechnology , composite material , metallurgy , chemistry , physics
Low‐optical‐reflectance cathodes (< 2 %, ∼ 45× lower than standard metal cathodes) utilizing a metal–organic mixed layer (MOML) have recently been developed and shown to dramatically enhance display contrast for organic light‐emitting devices. MOML characterization reveals an organic matrix with embedded metal nanoparticles (see Figure), whose surface plasmon resonance is responsible for the layer's light‐absorption properties.