| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Polymer Photovoltaic Cells Based on Ultraviolet-Ozone-Treated Vanadium-Doped Indium Oxide Anodes |
| GUO Xiao-Yang1, LUO Jin-Song1**, CHEN Hong2, LIU Xing-Yuan1** |
1State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
2Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033 |
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Abstract Polymer photovoltaic (PV) cells based on UV-ozone(UVO)-treated indium vanadium oxide (IVO) anodes are developed. The performance of cells with UVO-treated IVO film anodes without interfacial layers was significantly improved compared with those containing untreated IVO anodes. The origin of the enhancement is investigated by atomic force microscopy and photoelectron spectroscopy measurements. The results demonstrate that UVO treatment can smooth the IVO surface, and increase the work function of IVO films due to the removal of carbon contamination and a dipole resulting from a surface rich in negatively charged oxygen. UVO-treated IVO films are potential electrode materials for polymer PV cells.
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Received: 23 May 2012
Published: 31 July 2012
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| PACS: |
88.40.jr
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(Organic photovoltaics)
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73.40.-c
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(Electronic transport in interface structures)
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