Efficient top-emitting organic light-emitting diodes with a V2O5 modified silver anode
Data(s) |
2007
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Resumo |
We fabricated efficient top-emitting organic light-emitting diodes (OLEDs) with silver (Ag) as an anode and samarium (Sm) as a semi-transparent cathode. The hole-injection barrier at the Ag anode/hole transporter interface is reduced by inserting a buffer layer of vanadium oxide (V2O5) between them. The ultraviolet photoelectron spectroscopy analysis shows that the hole-injection barrier is reduced by 0.5 eV. Both the V2O5 thickness and the organic layer thickness are optimized. The optimized device achieves a maximum current efficiency of 5.46 cd A(-1) and a power efficiency of 3.90 lm W-1, respectively. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Wu J;Hou JH;Cheng YX;Xie ZY;Wang LX.Efficient top-emitting organic light-emitting diodes with a V2O5 modified silver anode,SEMICONDUCTOR SCIENCE AND TECHNOLOGY,2007 ,22(7):824-826 |
Palavras-Chave | #ELECTROLUMINESCENT DIODES #VANADIUM PENTOXIDE #MICROCAVITY #EMISSION #SURFACE #DEVICES |
Tipo |
期刊论文 |