Polymer solar cells based on a PEDOT:PSS layer spin-coated under the action of an electric field |
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Authors: | Feng Zhi-Hui Hou Yan-Bing Shi Quan-Min Qin Li-Fang Li Yan Zhang Lei Liu Xiao-Jun Teng Feng Wang Yong-Sheng and Xia Rui-Dong |
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Institution: | [1]Key Laboratory of Luminescence and Optical Information, Ministry of Education; Institute of Optoelectronic Technology, Beijing 3iaotong University, Beijing 100044, China [2]Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ, UK |
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Abstract: | In the process of fabrication of polymer photovoltaic (PV)
devices, poly (3, 4-ethylenedioxythiophene): poly(styrenesulfonate)
(PEDOT:PSS) thin film, acting as an anode buffer layer, is
spin-coated under the action of an electric field. The PV devices
with a PEDOT:PSS layer spin-coated under the action of a static
electric field exhibit improved short-circuit current density
(Jsc) and power conversion efficiency (PCE). The
investigation of morphology shows that the appropriate intensity of
the electric field can increase the roughness of the surface of the
PEDOT:PSS layer, which results in improved contact between the anode
and hole transport layer and thus enhances the Jsc of the
devices. Chemical analysis is also provided by x-ray
photoelectron spectroscopy (XPS) spectra. |
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Keywords: | polymer solar cell photovoltaic spin-coating under
electric field |
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