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Electrospun Polythiophene Nanofibers and Their Applications for Organic Solar Cells

Published online by Cambridge University Press:  03 March 2011

Surawut Chuangchote ,
Michiyasu Fujita ,
Takashi Sagawa  and
Susumu Yoshikawa
Surawut Chuangchote
Affiliation:
Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan E-mail addresses: t-sagawa@iae.kyoto-u.ac.jp (T.S.); s-yoshi@iae.kyoto-u.ac.jp (S.Y.)
Michiyasu Fujita
Affiliation:
Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan E-mail addresses: t-sagawa@iae.kyoto-u.ac.jp (T.S.); s-yoshi@iae.kyoto-u.ac.jp (S.Y.)
Takashi Sagawa
Affiliation:
Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan E-mail addresses: t-sagawa@iae.kyoto-u.ac.jp (T.S.); s-yoshi@iae.kyoto-u.ac.jp (S.Y.)
Susumu Yoshikawa
Affiliation:
Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan E-mail addresses: t-sagawa@iae.kyoto-u.ac.jp (T.S.); s-yoshi@iae.kyoto-u.ac.jp (S.Y.)
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Abstract

Poly(3-hexylthiophene) (P3HT) nanofibers were fabricated with an association of poly(vinyl pyrrolidone) (PVP) by electrospinning. A mixture of P3HT/PVP in a mixed solvent of chlorobenzene and methanol was electrospun to form composite fibers with 60 nm - 2 μm in diameter, followed by getting rid of PVP by selective extraction. After extraction, pure P3HT nanofibers were obtained as a spindle-like structure with wrinkled surface. The nanofibers obtained exhibit specific features of strong interchain contribution as investigated by UV-vis, fluorescence spectroscopic, X-ray diffraction (XRD), and photo-electron investigations. Bulk heterojunction P3HT:PCBM nanofibers with ~200 nm in diameters were also successfully fabricated by using the same technique. The preliminary results from the study of P3HT:PCBM nanofiber-based photovoltaic cells with conversion efficiency over 0.2% could be achieved.

Keywords

photovoltaicnanostructurefiber
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1303: Symposium Y – Nanomaterials Integration for Electronics, Energy and Sensing , 2011 , mrsf10-1303-y03-28
Copyright
Copyright © Materials Research Society 2011

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References

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