Efficient inverted top-emitting organic light-emitting diodes using ultrathin MoO3/C-60 bilayer structure to enhance hole injection
Data(s) |
2009
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Resumo |
Efficient inverted top-emitting organic light-emitting diodes with aluminum (Al) as both the cathode and semitransparent anode are investigated. It is found that introduction of the ultrathin molybdenum trioxide (MoO3)/fullerene (C-60) bilayer structure between the low work function Al top anode and the hole-transporting layer dramatically enhances the device performance as compared to the devices with sole MoO3 or C-60 buffer layer. The ultraviolet photoemission spectroscopy and x-ray photoelectron spectroscopy indicate that the hole injection barrier between Al anode and hole-transporting layer is effectively reduced via strong dipole effect at Al/MoO3/C-60 interfaces with its direction pointing from Al to C-60. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Hou JH;Wu J;Xie ZY;Wang LX .Efficient inverted top-emitting organic light-emitting diodes using ultrathin MoO3/C-60 bilayer structure to enhance hole injection,APPLIED PHYSICS LETTERS,2009,95(20):文献编号:203508 |
Palavras-Chave | #DEVICES #C-60 |
Tipo |
期刊论文 |