| 光谱学与光谱分析 |
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| Optical and Morphological Investigation on the Interaction of Dual Dopants in Poly(N-Vinylcarzole) |
| ZHANG Ting1, XU Zheng1, 2, TENG Feng1, QIAN Lei1, WANG Yong-sheng1, XU Xu-rong1* |
1. Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
2. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing 100044, China |
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Abstract The effect of optical and electrical properties of poly(N-vinylcarzole) (PVK) doped with two dyes, i.e. 8-tris-hydroxyquinoline (Alq3) and 4-(dicyanomethylene)-2-tert-butyl-6 (1, 1, 7, 7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB), on the energy transfer and charge trapping processes was investigated. The phase separation in blends film at different doping concentration was also studied. More homogeneous dispersion of dyes in PVK with increasing doping concentration was showed. The results indicate that there is a certain interaction of Alq3 and DCJTB in this dual-doped system. It is the incorporation of DCJTB that untangled the aggregation of Alq3 owing to the interaction of DCJTB and Alq3. But for higher doping concentration, DCJTB results in an isolated charge transport channel that decreases the electroluminescence (EL) operating voltage.
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Received: 2004-12-18
Accepted: 2005-05-16
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Corresponding Authors:
XU Xu-rong
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| Cite this article: |
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ZHANG Ting,XU Zheng,TENG Feng, et al. Optical and Morphological Investigation on the Interaction of Dual Dopants in Poly(N-Vinylcarzole)[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 790-793.
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https://www.gpxygpfx.com/EN/Y2006/V26/I05/790 |
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