Abstract
Organic light-emitting diodes (OLEDs) have drawn a great deal of attention due to their wide application in lighting and displaying. With the development of nanotechnology, surface plasmas have been widely used in photonics, microscopes, solar cells and biosensors. In this paper, by inserting graphene oxide (GO), Au nanoparticles (Au NPs) and GO/Au NPs composite structures between the hole transport layer (NPB) and indium tin oxide (ITO) anode respectively, the electroluminescent performance of Alq3-based OLEDs was significantly enhanced. Compared to the reference devices, the devices with the composite inserting layer containing 10% GO/Au NPs doping have the best electroluminescent performance, which have improved 47.9% in maximum luminance, 49.2% in maximum current efficiency and 45.3% in maximum external quantum efficiency (EQE), respectively. Such substantial enhancement of photoelectric performance can be attributed to the combined effects of LSPR coupling and the better hole transport property by introducing Au NPs and graphene oxide doped layer.
Highlights
Organic light-emitting diodes (OLEDs) have drawn a great deal of attention due to their broad applications in lighting and displaying because they are simple to produce, lightweight, and flexible (Park et al, 2017)
A composite structure comprising Au nanoparticles (Au NPs) embedded in graphene oxide (GO) was introduced as a hole injection layer to take advantage of 2D materials and the plasma effect, which enhance the electroluminescence performance of OLEDs
Compared with the reference devices without Au NPs and GO, the optimal plasmonic OLEDs exhibit better performance in terms of luminance, current efficiency, and external quantum efficiency (EQE). These results suggest that the plasmonic OLEDs have great potential for enhanced performance by introducing Au NPs and GO
Summary
Organic light-emitting diodes (OLEDs) have drawn a great deal of attention due to their broad applications in lighting and displaying because they are simple to produce, lightweight, and flexible (Park et al, 2017). By inserting graphene oxide (GO), Au nanoparticles (Au NPs) and GO/Au NP composite structures between the hole transport layer (NPB) and indium tin oxide (ITO) anode, respectively, the electroluminescent performance of Alq3-based OLEDs was significantly enhanced.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
