| Charge carrier photogeneration in conjugated polymer PhPPV/R6G composite system |
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| 作者姓名： | WANG Huan TIAN Wenjing |
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| 作者单位： | Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130023, China |
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| 基金项目： | Acknowledgements The authors are grateful to Prof. Heinz Baissler and Dr. Im Chan in Philipps-University, Marburg, Germany for their kind help and discussion. This work was supported by the Major State Basic Research Development Program （Grant No. 2002CB613401）, the National Natural Science Foundation of China （Grant No. 20474023） and the Program for Changjiang Scholars and Innovative Research Team in University. |
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| 摘 要： | Photoconducting organic materials including conju-gated polymers1―3], organic molecules4,5], stacked disco- stic liquid crystals6,7] and self-assembling organic semi-conductors8,9] have attracted intense interests due to their extraordinary performances. Their charge carrier photo-generation mechanism has been one of the most important subjects of large amounts of publications in view of possi-ble applications in electronic devices such as photovoltaic cells10―19]. The charge carrier ph…
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| 关 键 词： | 共轭聚合物 量子频率 光谱极性 光电流测量 |
| 收稿时间： | 2005-01-18 |
| 修稿时间： | 2005-01-182005-02-28 |
Charge carrier photogeneration in conjugated polymer PhPPV/R6G composite system |
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| WANG Huan TIAN Wenjing.Charge carrier photogeneration in conjugated polymer PhPPV/R6G composite system[J].Chinese Science Bulletin,2005,50(18):1991-1994. |
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| Authors: | Huan Wang Wenjing Tian |
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| Institution: | WANG Huan & TIAN Wenjing Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, Changchun 130023, China |
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| Abstract: | The spectral and polarity dependence of the quantum yield of charge carrier photo-generation was studied by steady-state photocurrent measurement in a single layer PhPPV film, double layer film of PhPPV and R6G and doped film of PhPPV with R6G. The intrinsic and extrinsic charge carrier photogeneration was observed. The result indicates that the quantum efficiency of the double layer device is higher than that of single layer device under reverse bias, but it is opposite under forward bias. The yield of charge carrier photogeneration of the doped film is higher than that of the other two films at both forward and reverse bias because of the increased interface area between the electron donor and acceptor. |
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| Keywords: | conjugated polymer photoconduction charge carrier photogeneration quantum efficiency |
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