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Issue 13, 2014
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Pure thiophene–sulfur doped reduced graphene oxide: synthesis, structure, and electrical properties

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Abstract

Here we propose, for the first time, a new and green ethanol-thermal reaction method to synthesize high-quality and pure thiophene–sulfur doped reduced graphene oxide (rGO), which establishes an excellent platform for studying sulfur (S) doping effects on the physical/chemical properties of this material. We have quantitatively demonstrated that the conductivity enhancement of thiophene–S doped rGO is not only caused by the more effective reduction induced by S doping, but also by the doped S atoms, themselves. Furthermore, we demonstrate that the S doping is more effective in enhancing conductivity of rGO than nitrogen (N) doping due to its stronger electron donor ability. Finally, the dye-sensitized solar cell (DSCC) employing the S-doped rGO/TiO2 photoanode exhibits much better performance than undoped rGO/TiO2, N-doped rGO/TiO2 and TiO2 photoanodes. It therefore seems promising for thiophene–S doped rGO to be widely used in electronic and optoelectronic devices.

Graphical abstract: Pure thiophene–sulfur doped reduced graphene oxide: synthesis, structure, and electrical properties

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Supplementary files

Article information


Submitted
23 Sep 2013
Accepted
08 Jan 2014
First published
16 Jan 2014

Nanoscale, 2014,6, 7281-7287
Article type
Paper

Pure thiophene–sulfur doped reduced graphene oxide: synthesis, structure, and electrical properties

Z. Wang, P. Li, Y. Chen, J. He, W. Zhang, O. G. Schmidt and Y. Li, Nanoscale, 2014, 6, 7281
DOI: 10.1039/C3NR05061K

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