on Electroplex XIA Long, MENG Wei-xin, XU Hui-xia, HAO Yu-ying, WANG Hua, XU Bing-she. White Organic Light Emitting Device Based on [NPB<sup>+</sup>Zn(4-TfmBTZ)<sup>-</sup><sub>2</sub>] Electroplex[J]. Chinese Journal of Luminescence, 2011,32(6): 587-592
on Electroplex XIA Long, MENG Wei-xin, XU Hui-xia, HAO Yu-ying, WANG Hua, XU Bing-she. White Organic Light Emitting Device Based on [NPB<sup>+</sup>Zn(4-TfmBTZ)<sup>-</sup><sub>2</sub>] Electroplex[J]. Chinese Journal of Luminescence, 2011,32(6): 587-592 DOI: 10.3788/fgxb20113206.0587.
White Organic Light Emitting Device Based on [NPB+Zn(4-TfmBTZ)-2] Electroplex
The doping devices with the structure of ITO/NPB/Zn(4-TfmBTZ)
2
∶ NPB/LiF/Al are fabricated
where the NPB male fraction in Zn (4-TfmBTZ)
2
layer is 0
5%
10%
20%
respectively. The results show that the mole fraction of NPB in Zn(4-TfmBTZ)
2
layer has important effect on the device performance
which contains not only efficiency but also chromaticity and color rendering index. As the NPB mole fraction in Zn(4-TfmBTZ)
2
layer in creases gradually from 0 to 10%
the electroplex emission enhances gradually
the device efficiency increases firstly and hten reduces
and the light color becomes grodually from blue white
white to yellow white at the same voltage. When the mole fraction of NPB in Zn(4-TfmBTZ)
2
layer is 5%
the device shows the best performance with the color coordinate region of (0.28~0.32
0.33~0.35) and the color rendering index of 83.3~91.2 at voltage of 6~9 V. The maximum efficiency of this device is 0.87 cd/A.
关键词
Keywords
references
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