Biggs_Appl Surf Sci (as accepted).pdf (1 MB)
Incorporation of graphene into SnO2 photoanodes for dye-sensitized solar cells
journal contribution
posted on 2016-08-12, 13:27 authored by Munkhbayar Batmunkh, Mahnaz Dadkhah, C.J. Shearer, Mark Biggs, J.G. Shapter© 2016 Elsevier B.V.In dye-sensitized solar cell (DSSC) photoanodes, tin dioxide (SnO2) structures present a promising alternative semiconducting oxide to the conventional titania (TiO2), but they suffer from poor photovoltaic (PV) efficiency caused by insufficient dye adsorption and low energy value of the conduction band. A hybrid structure consisting of SnO2 and reduced graphene oxide (SnO2-RGO) was synthesized via a microwave-assisted method and has been employed as a photoanode in DSSCs. Incorporation of RGO into the SnO2 photoanode enhanced the power conversion efficiency of DSSC device by 91.5%, as compared to the device assembled without RGO. This efficiency improvement can be attributed to increased dye loading, enhanced electron transfer and addition of suitable energy levels in the photoanode. Finally, the use of RGO addresses the major shortcoming of SnO2 when employed as a DSSC photoanode, namely poor dye adsorption and slow electron transfer rate.
Funding
This work was supported by the Australian Research Council Discovery Program (DP130101714).
History
School
- Science
Department
- Chemistry
Published in
Applied Surface ScienceVolume
387Pages
690 - 697Citation
BATMUNKH, M. ...et al., 2016. Incorporation of graphene into SnO2 photoanodes for dye-sensitized solar cells. Applied Surface Science, 387, pp. 690-697.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2016Notes
This paper was accepted for publication in the journal Applied Surface Science and the definitive published version is available at http://dx.doi.org/10.1016/j.apsusc.2016.06.146ISSN
0169-4332Publisher version
Language
- en