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Journal of Materials Science
Erschienen in: Journal of Materials Science 23/2014

01.12.2014 | Original Paper

A facile way to fabricate graphene sheets on TiO2 nanotube arrays for dye-sensitized solar cell applications

verfasst von: Yang Wang, Zhen Li, Yunfeng Tian, Wen Zhao, Xueqin Liu, Jianbo Yang

Erschienen in: Journal of Materials Science | Ausgabe 23/2014

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Abstract

Large-area graphene sheets on TiO2 nanotube arrays (RGO/TNAs) were fabricated using a simple electrochemical method. The RGO content loaded on the arrays was controlled by changing the electrochemical reaction time. The microstructures and properties of RGO/TNAs were characterized and measured using field emission scanning electron microscopy, X-ray diffraction pattern, X-ray photoelectron spectroscopy, FT-IR spectra, and ultraviolet–visible (UV–Vis) spectroscopy. The results indicated that an appropriate reaction time clearly enhances photoelectrochemical properties, while excessive RGO loading significantly lowers their performance. Remarkably, in sharp contrast to the dye-sensitized solar cells prepared by TNAs as photoanode, the RGO/TNAs showed a significantly enhanced power conversion efficiency of 4.46 %. The improvement of light harvesting is due to the excellent property of RGO and the special structure of the composite.
Vorheriger Artikel Ultrasonic spray coating and flash lamp annealing of silicon nanoparticle dispersions for silicon thin film formation
Nächster Artikel Controlled hydrothermal growth of multi-length-scale ZnO nanowires using liquid masking layers

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Metadaten
Titel
A facile way to fabricate graphene sheets on TiO2 nanotube arrays for dye-sensitized solar cell applications
verfasst von
Yang Wang
Zhen Li
Yunfeng Tian
Wen Zhao
Xueqin Liu
Jianbo Yang
Publikationsdatum
01.12.2014
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 23/2014
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-014-8506-7

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