Premium
Eliminating Micro‐Cavity Effects in White Top‐Emitting OLEDs by Ultra‐Thin Metallic Top Electrodes
Author(s) -
Schwab Tobias,
Schubert Sylvio,
MüllerMeskamp Lars,
Leo Karl,
Gather Malte C.
Publication year - 2013
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201300392
Subject(s) - materials science , oled , transmittance , optoelectronics , electrode , cathode , layer (electronics) , wetting , diode , optics , composite material , chemistry , physics
The device efficiency and angular color stability of white top‐emitting OLEDs is significantly improved by a decrease in thickness of the semitransparent silver cathode. The transmittance increases and the micro‐cavity effects are reduced. Inserting a 2 nm gold wetting layer, the silver layer can be reduced to 5 nm achieving higher efficiency and comparable color stability to the bottom‐emitting reference.