Incorporation of graphene into SnO 2 photoanodes for dye-sensitized solar cells

Munkhbayar Batmunkh; Mahnaz Dadkhah Jazi; Cameron Shearer; Mark Biggs; Joseph Shapter

doi:10.1016/j.apsusc.2016.06.146

Incorporation of graphene into SnO 2 photoanodes for dye-sensitized solar cells

Munkhbayar Batmunkh, Mahnaz Dadkhah Jazi, Cameron Shearer, Mark Biggs, Joseph Shapter

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

In dye-sensitized solar cell (DSSC) photoanodes, tin dioxide (SnO ₂ ) structures present a promising alternative semiconducting oxide to the conventional titania (TiO ₂ ), 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 SnO ₂ and reduced graphene oxide (SnO ₂ -RGO) was synthesized via a microwave-assisted method and has been employed as a photoanode in DSSCs. Incorporation of RGO into the SnO ₂ 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 SnO ₂ when employed as a DSSC photoanode, namely poor dye adsorption and slow electron transfer rate.

Original language	English
Pages (from-to)	690-697
Number of pages	8
Journal	Applied Surface Science
Volume	387
DOIs	https://doi.org/10.1016/j.apsusc.2016.06.146
Publication status	Published - 2016

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@article{9cc78a1777774e47b1f56a9656c732e3,

title = "Incorporation of graphene into SnO 2 photoanodes for dye-sensitized solar cells",

abstract = " In dye-sensitized solar cell (DSSC) photoanodes, tin dioxide (SnO 2 ) structures present a promising alternative semiconducting oxide to the conventional titania (TiO 2 ), 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 SnO 2 and reduced graphene oxide (SnO 2 -RGO) was synthesized via a microwave-assisted method and has been employed as a photoanode in DSSCs. Incorporation of RGO into the SnO 2 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 SnO 2 when employed as a DSSC photoanode, namely poor dye adsorption and slow electron transfer rate. ",

author = "Munkhbayar Batmunkh and {Dadkhah Jazi}, Mahnaz and Cameron Shearer and Mark Biggs and Joseph Shapter",

year = "2016",

doi = "10.1016/j.apsusc.2016.06.146",

language = "English",

volume = "387",

pages = "690--697",

journal = "Applied Surface Science",

issn = "0169-4332",

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TY - JOUR

T1 - Incorporation of graphene into SnO 2 photoanodes for dye-sensitized solar cells

AU - Batmunkh, Munkhbayar

AU - Dadkhah Jazi, Mahnaz

AU - Shearer, Cameron

AU - Biggs, Mark

AU - Shapter, Joseph

PY - 2016

Y1 - 2016

N2 - In dye-sensitized solar cell (DSSC) photoanodes, tin dioxide (SnO 2 ) structures present a promising alternative semiconducting oxide to the conventional titania (TiO 2 ), 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 SnO 2 and reduced graphene oxide (SnO 2 -RGO) was synthesized via a microwave-assisted method and has been employed as a photoanode in DSSCs. Incorporation of RGO into the SnO 2 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 SnO 2 when employed as a DSSC photoanode, namely poor dye adsorption and slow electron transfer rate.

AB - In dye-sensitized solar cell (DSSC) photoanodes, tin dioxide (SnO 2 ) structures present a promising alternative semiconducting oxide to the conventional titania (TiO 2 ), 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 SnO 2 and reduced graphene oxide (SnO 2 -RGO) was synthesized via a microwave-assisted method and has been employed as a photoanode in DSSCs. Incorporation of RGO into the SnO 2 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 SnO 2 when employed as a DSSC photoanode, namely poor dye adsorption and slow electron transfer rate.

U2 - 10.1016/j.apsusc.2016.06.146

DO - 10.1016/j.apsusc.2016.06.146

M3 - Article

VL - 387

SP - 690

EP - 697

JO - Applied Surface Science

JF - Applied Surface Science

SN - 0169-4332

ER -