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Synthesis and optical property of P3HT/carbon microsphere composite film

Published online by Cambridge University Press:  19 November 2012

Yongzhen Yang ,
Jingjing Song ,
Yong Li ,
Xuguang Liu  and
Bingshe Xu
Yongzhen Yang*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
Jingjing Song
Affiliation:
Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China; and College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yong Li
Affiliation:
Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China; and College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Xuguang Liu*
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Bingshe Xu
Affiliation:
Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, China; and Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
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Abstract

Carbon microspheres (CMSs) were oxidized by a mixture of concentrated sulfuric acid and nitric acid (ratio of 3:1 by volume) to improve their surface activity. Then, poly(3-hexylthiophene):CMSs (P3HT:CMSs) composite film was prepared by spin-coating method with oxidized CMSs and P3HT mixture chloroform solution. Energy levels of oxidized CMSs were investigated by cyclic voltammetry, the morphology of the composite films was characterized by atomic force microscopy, optical performance was analyzed by ultraviolet–visible spectrophotometry and fluorescent spectrometry, and microstructures of the products were characterized by Fourier transformation infrared spectrometry and x-ray diffraction. The results indicate that suspension concentration of 30 mg/mL and spinning rate of 2500 rpm were appropriate for fabricating P3HT:CMSs composite films. Optical properties of the P3HT:CMSs blends were changed by annealing. This lays an experimental foundation for fabricating active layer of polymer solar cells with high photoelectric conversion and low cost.

Keywords

thin filmcompositeannealing
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 7: Focus Issue: De Novo Carbon Nanomaterials: Opportunities and Challenges in a Flat World , 14 April 2013 , pp. 998 - 1003
Copyright
Copyright © Materials Research Society 2012

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