Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3373855
Keywords
aluminium; anodes; brightness; glass; graphene; hole density; multilayers; organic light emitting diodes; organic semiconductors; vanadium compounds
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Funding
- National Natural Science Foundation of China [60576037, 10774007, 10574008, 50732001, 10674012, 10874001, 60877022]
- National Basic Research Program of China [2006CB921607, 2007CB613402]
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In this report, we find multilayered graphene, which has good transparency, conductivity and suitable work function, can be used as the anode for the organic light emitting device. Our device structure is Al/glass/multilayered graphene/V2O5/NPB/CBP:(ppy)(2)Ir(acac)/Bphen/Bphen:Cs2CO3/Sm/Au. The maximum luminance efficiency and maximum power efficiency reach 0.75 cd/A and 0.38 lm/W, respectively. We believe that by optimizing the hole density and uniforming the thickness of the multilayered graphene anode, the device efficiency can be remarkably increased in the future.
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