| 光谱学与光谱分析 |
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| Ideal White Organic Light Emitting Devices Based on Doped PFO |
| ZHAO Fan-fan, LIANG Chun-jun*, HE Zhi-qun, XU Yong-yan, JI Qian |
| Institute of Optoelectronic Thechnology of Beijing Jiaotong University, Key Laboratory of Luminescence and Optical Information (Ministry of Education), Beijing 100044, China |
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Abstract In the present paper, the electroluminescence emission from a doped polymer layer was studied. The blue fluorene PFO was used as the host material and MEH-PPV as the dopant. The spectral characteristics and color stability of the emission on CIE chromaticity diagram were investigated. With the doping ratio of 2.5 Wt%, the device shows turn-on voltage of 3 V, and color coordinates of (0.33, 0.33) at 11 V. The color coordinates of the device was stable with changing voltage in a large range, and located in the ideal white area in the range of 5~20 V voltage.
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Received: 2011-05-11
Accepted: 2011-08-02
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Corresponding Authors:
LIANG Chun-jun
E-mail: chjliang@bjtu.edu.cn
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