Issue 6, 2023

Plasmon enhanced fluorescence from meticulously positioned gold nanoparticles, deposited by ultra sonic spray coating on organic light emitting diodes

Abstract

Enhancement of the spontaneous emission of fluorophores aided by plasmonic nanoparticles (PNPs) prompts the growth of plasmonic organic light emitting diodes (OLEDs). Together with the spatial dependence of the fluorophore and PNPs on enhanced fluorescence, the surface coverage of the PNPs controls the charge transport in OLEDs. Hence, here, the spatial and surface coverage reliance of plasmonic gold nanoparticles is controlled by a roll-to-roll compatible ultrasonic spray coating technique. A 2-fold enhancement in the multi photon fluorescence is seen by two-photon fluorescence microscopy for a polystyrene sulfonate (PSS) stabilized gold nanoparticle located 10 nm away from the super yellow fluorophore. Fluorescence enhancement combined with ∼2% surface coverage of PNPs, provides a 33%, 20% and ∼40% increase in the electroluminescence, luminous efficacy and external quantum efficiency, respectively.

Graphical abstract: Plasmon enhanced fluorescence from meticulously positioned gold nanoparticles, deposited by ultra sonic spray coating on organic light emitting diodes

Supplementary files

Article information

Article type
Paper
Submitted
29 Okt. 2022
Accepted
08 Febr. 2023
First published
09 Febr. 2023
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2023,5, 1750-1759

Plasmon enhanced fluorescence from meticulously positioned gold nanoparticles, deposited by ultra sonic spray coating on organic light emitting diodes

R. S. Nithyananda Kumar, M. Eerdekens, Y. de Coene, V. S. Nagaraja, S. Ahadzadeh, M. Van landeghem, T. Verbiest and W. Deferme, Nanoscale Adv., 2023, 5, 1750 DOI: 10.1039/D2NA00753C

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