Open AccessLocalized surface plasmon enhanced emission of organic light emitting diode coupled to DBR-cathode microcavity by using silver nanoclusters
Author(s) -
Samira Khadir,
Mohamad Chakaroun,
Abderrahmane Belkhir,
A. Fischer,
Omar Lamrous,
Azzedine Boudrioua
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.023647
Subject(s) - oled , materials science , optoelectronics , cathode , surface plasmon , electroluminescence , plasmon , nanoclusters , distributed bragg reflector , optics , diode , indium tin oxide , light emitting diode , wavelength , layer (electronics) , nanotechnology , chemistry , physics
In this work, we aim to increase the emission of the standard guest-host organic light emitting diode (OLED) thanks to localized surface plasmon and to investigate this effect in a microcavity. As a first step, we consider thermal deposition of silver clusters within an OLED guest-host stack. We investigate both the influence of the size of silver nanoparticles (Ag-NPs) and their position within the OLED heterostructure. Secondly, we study the optimized OLED within a microcavity formed by Al-cathode top mirror and a Distributed Bragg Reflector (DBR) bottom mirror. The experimental results show a substantial enhancement of the electroluminescence (EL) intensity as well as a reduction of the spectral width at a half maximum.