Preparation of Graphene Films and their Applications in Dye-Sensitized Solar Cells

Abstract:

A facile and rapid deposition process is developed for the fabrication of large-area graphene films by scalpel technology using graphene nanopartical as material. Graphite oxide (GO) was synthesized using modified Hummers method. Graphene nanopartical was fabricated by a reducing process in which GO was well reduced by hydrazine hydrate. The crystal structure and photoelectric properties of graphene and graphene films were investigated by X-ray diffraction. The composition of production (GO and graphene) is investigated by Fourier Transform Infrared Spectroscopy (FTIR) and Raman spectroscopy technology. Surface morphology of graphene layers were observed by SEM. Then, the semitransparent conductive films were applied to backside illumination DSSC. As a result, the maximum power conversion efficiency (PCE) is as high as 0.2558% and the fill factor is 30.97%.

• Periodical: Key Engineering Materials (Volume 538)
• Pages: 332-336
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.538.332
• Online since: January 2013
• Authors: Tan Shen, Yue Shen, Xiao Tian Ma, Wen Ting Gao, Meng Cao, Feng Gu, Lin Jun Wang
• Keywords: Grapheme Film, Scalpel Technology, Transparent Electrode

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