Nanomeghyas

Nanomeghyas

Utilizing Nanocomposite of Molybdenum Oxide: Graphene Oxide as a Hole Injecting Layer in Light Emitting Diode

Authors
H. Daghi
M. Zirak
Abstract
Discovery of organic light emitting diode OLED opens up exciting opportunities in the lighting industry. Lightness, no need to back light, mechanical flexibility, ability to be fabricated as a transparent device and no need to ultra-high vacuum are the most prominent advantageous of OLED in comparison to another lighting devices. the efficiency of device is one of the key challenges which should be addressed. Electrons from electron injecting layer EIL and holes from hole injecting layer HIL are injected into emissive layer to recombine with each other, leading to light emission. According to the reports, improvement in hole injecting inside the HIL could increase the LED efficiency. Herein, we improved the efficiency of LED through combination of nanostructured molybdenum oxide and graphene oxide layer with different volume fractions. The most efficiency improvement about 25 was achieved for GO:MoOx composite with volume fraction of 1:1.
Keywords
OLED
HIL
graphene oxide
molybdenum oxide
nanocomposite
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  • Receive Date 29 October 2020