Highly efficient inverted top-emitting organic light-emitting diodes using a lead monoxide electron injection layer
Data(s) |
2009
|
---|---|
Resumo |
By introducing an effective electron injection layer (EIL) material, i.e., lead monoxide (PbO), combined with the optical design in device structure, a high efficiency inverted top-emitting organic light-emitting diode (ITOLED) with saturated and quite stable colors for different viewing angles is demonstrated. The green ITOLED based on 10-(2-benzothiazolyl)-1, 1, 7, 7-tetramethyl-2, 3, 6, 7-tetrahydro-1H, 5H, 11H-[1] benzopyrano [6, 7, 8-ij] quinolizin-11-one exhibits a maximum current efficiency of 33.8 cd/A and a maximum power efficiency of 16.6 lm/W, accompanied by a nearly Lambertian distribution as well as hardly detectable color variation in the 140 forward viewing cone. A detailed analysis on the role mechanism of PbO in electron injection demonstrates that the insertion of the PbO EIL significantly reduces operational voltage, thus greatly improving the device efficiency. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Wang Q;Deng ZQ;Ma DG .Highly efficient inverted top-emitting organic light-emitting diodes using a lead monoxide electron injection layer,OPTICS EXPRESS,2009,17(20 ):17269-17278 |
Palavras-Chave | #DEVICES #CATHODE #ELECTROLUMINESCENCE #EMISSION #DISPLAY |
Tipo |
期刊论文 |