| Effect of crystalline microstructure on the photophysical performance of polymer／perylene composite films |
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| 引用本文： | 封伟,徐友龙,易文辉,周峰,王晓工,吉野勝美.Effect of crystalline microstructure on the photophysical performance of polymer／perylene composite films[J].中国物理 B,2003,12(4):426-432. |
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| 作者姓名： | 封伟 徐友龙 易文辉 周峰 王晓工 吉野勝美 |
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| 作者单位： | (1)Department of Electronic Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan; (2)Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China; (3)School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China |
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| 基金项目： | Project supported by the Foundation for Overseas Returnee of Chinese Education Ministry (Grant No 2001345) and the Postdoctoral Science Foundation of China (Grant No 2002032055). |
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| 摘 要： | To obtain high carrier mobility, better charge injection capability, and high photovoltaic device conversion efficiency, a powerful strategy is to improve the morphology of the polymer/dye composite films. Conjugated conducting polymer (CP) thin films doped with perylene derivative (PV) of various concentrations were prepared by spin-casting method, and their morphology and photovoltaic characteristics were examined. The change in morphology and molecular reorientation occurring in CP-PV composite films upon annealing at different temperatures was investigated using scanning electron microscopy, x-ray diffraction, Fourier transform infrared and UV-vis absorption. By changing the annealing temperature, PV microcrystallines of 8－10μm in size lying parallel to the substrate surface can be obtained. Annealing effect improved the photovoltaic performance of ITO/CP-PV/Al Schottky-type solar cells, which can be attributed to the formation of an electron conducting PV crystal network. Preliminary studies indicate that the morphological structure in CP-PV composite films has an important influence to their photovoltaic properties.
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| 关 键 词： | 晶体 微观结构 形态学 光电装置 聚合物 退火 复合薄膜 苝 物理测量 |
| 收稿时间： | 2002-11-22 |
Effect of crystalline microstructure on the photophysical performance of polymer/perylene composite films |
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| Feng Wei,Xu You-Long,Yi Wen-Hui,Zhou Feng,Wang Xiao-Gong and Yoshino Katsumi.Effect of crystalline microstructure on the photophysical performance of polymer/perylene composite films[J].Chinese Physics B,2003,12(4):426-432. |
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| Authors: | Feng Wei Xu You-Long Yi Wen-Hui Zhou Feng Wang Xiao-Gong and Yoshino Katsumi |
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| Institution: | Institute of Polymer Science and Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China; School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Department of Electronic Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan |
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| Abstract: | To obtain high carrier mobility, better charge injection capability, and high photovoltaic device conversion efficiency, a powerful strategy is to improve the morphology of the polymer/dye composite films. Conjugated conducting polymer (CP) thin films doped with perylene derivative (PV) of various concentrations were prepared by spin-casting method, and their morphology and photovoltaic characteristics were examined. The change in morphology and molecular reorientation occurring in CP-PV composite films upon annealing at different temperatures was investigated using scanning electron microscopy, x-ray diffraction, Fourier transform infrared and UV-vis absorption. By changing the annealing temperature, PV microcrystallines of 8－10μm in size lying parallel to the substrate surface can be obtained. Annealing effect improved the photovoltaic performance of ITO/CP-PV/Al Schottky-type solar cells, which can be attributed to the formation of an electron conducting PV crystal network. Preliminary studies indicate that the morphological structure in CP-PV composite films has an important influence to their photovoltaic properties. |
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| Keywords: | morphology organic photovoltaic device conducting polymer composite perylene annealing |
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