| 光谱学与光谱分析 |
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| Effects of White Organic Light-Emitting Devices Using Color Conversion Films on Electroluminescence Spectra |
| HOU Qing-chuan, WU Xiao-ming, HUA Yu-lin*, QI Qing-jin, LI Lan, YIN Shou-gen |
| School of Materials Science & Engineering, Tianjin University of Technology, Key Laboratory of Photoelectric Display Materials & Devices (Tianjin University of Technology), Ministry of Education, Tianjin Key Lab for Photoelectric Display Materials & Devices, Tianjin 300384, China |
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Abstract The authors report a novel white organic light-emitting device (WOLED), which uses a strategy of exciting organic/inorganic color conversion film with a blue organic light-emitting diode (OLED). The luminescent layer of the blue OLED was prepared by use of CBP host blended with a blue highly fluorescent dye N-BDAVBi. The organic/inorganic color conversion film was prepared by dispersing a mixture of red pigment VQ-D25 and YAG∶Ce3+ phosphor in PMMA. The authors have achieved a novel WOLED with the high color stability by optimizing the thickness and fluorescent pigment concentration of the color conversion film. When the driving voltage varied between 6 and 14 V, the color coordinates (CIE) varied slightly from (0.354, 0.304) to (0.357, 0.312) and the maximum current efficiency is about 5.8 cd·A-1(4.35 mA·cm-2)，the maximum brightness is 16 800 cd·m-2 at the operating voltage of 14 V.
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Received: 2009-06-06
Accepted: 2009-09-08
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Corresponding Authors:
HUA Yu-lin
E-mail: yulinhua@tjut.edu.cn
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| Cite this article: |
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HOU Qing-chuan,WU Xiao-ming,HUA Yu-lin, et al. Effects of White Organic Light-Emitting Devices Using Color Conversion Films on Electroluminescence Spectra [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(06): 1460-1463.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2010/V30/I06/1460 |
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