| 光谱学与光谱分析 |
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| Investigation on the Photoconductive Properties of MEH-PPV/CdSe Nanocomposite Devices |
| TANG Ai-wei, TENG Feng*, GAO Yin-hao, JIN Hui, LIANG Chun-jun, XU Zheng, WANG Yong-sheng |
| Institute of Optoelectronic Technology and Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China |
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Abstract Photoconductive properties of the composite devices made up of cadmium selenide nanocrystals and polymer poly[2-methoxy-5-(2′-ethylhexyloxy-p-phenylenevinylene)](MEH-PPV) were investigated. The photocurrent action spectrum for a nanocomposite device corresponded to the absorption of MEH-PPV and CdSe nanocrystals, indicating that the absorption of the CdSe nanocrystals and MEH-PPV contributed to the photocurrent. The photocurrent was attributed to the exciton dissociation and charge transfer between the interface of CdSe nanocrystals and MEH-PPV. The photocurrent action spectra of the nanocomposite device was wider than that of the pure MEH-PPV device, and the photocurrent was enhanced in comparison with the pure MEH-PPV device due to the introduction of CdSe nanocrystals.
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Received: 2005-09-08
Accepted: 2005-12-26
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Corresponding Authors:
TENG Feng
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| Cite this article: |
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TANG Ai-wei,TENG Feng,GAO Yin-hao, et al. Investigation on the Photoconductive Properties of MEH-PPV/CdSe Nanocomposite Devices[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(12): 2169-2172.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I12/2169 |
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