Skip to main content Accessibility help
×
Home

Optically transparent graphene nanoplatelet inks as low cost electrocatalysts for liquid dye sensitised solar cells

  • J. Baker (a1), T.M. Watson (a2), D. Jones (a3), D. Deganello (a1), D.T. Gethin (a1) and T C Claypole (a1)...

Abstract

Graphene nanoplatelets (GNPs) functionalised with platinum were explored as the active material in a high specific surface area ink. The ink had a transmission at 550nm (T550) = 85% and a charge transfer resistance (Rct) of 6Ω/cm2. Although the Rct is higher than required for laboratory cells having a Jsc of 20mA/cm2 under 1 sun test conditions it is sufficient for industrially produced reverse devices, especially when utilised for indoor applications where light conditions will be lower than 100W/m2. This was demonstrated by reverse illuminated DSC efficiencies with flexible cathodes which were equivalent to cells with sputtered platinum catalysts when subjected to 300W/m2 lighting or less. A modification to the ink, suitable for catalysing a Co2+/3+ electrolyte having an Rct of 2Ω/cm2 and T550= 85% was undertaken. This demonstrates potential for use in high efficiency cobalt mediated DSCs. The work shows that printed graphene catalysts are a versatile low cost replacement to sputtered platinum in reverse illuminated DSCs for dye sensitised solar cells.

Copyright

References

Hide All
[1] Roy-Mayhew, J. D., Boschloo, G., Hagfeldt, A., and a Aksay, I., “Functionalized graphene sheets as a versatile replacement for platinum in dye-sensitized solar cells.,” ACS Appl. Mater. Interfaces, vol.4, no. 5, pp. 2794–800, May 2012.10.1021/am300451b
[2] Kavan, L., Yum, J.-H., and Graetzel, M., “Optically transparent cathode for Co(III/II) mediated dye-sensitized solar cells based on graphene oxide.,” ACS Appl. Mater. Interfaces, vol. 4, no. 12, pp. 69997006, Dec. 2012.10.1021/am302253e
[3] Bajpai, R., Roy, S., Kumar, P., Bajpai, P., Kulshrestha, N., Rafiee, J., Koratkar, N., and Misra, D. S., “Graphene supported platinum nanoparticle counter-electrode for enhanced performance of dye-sensitized solar cells.,” ACS Appl. Mater. Interfaces, vol. 3, no. 10, pp. 3884–9, Oct. 2011.10.1021/am200721x
[4] Baker, J., Deganello, D., Gethin, D. T., and Watson, T. M., “Flexographic printing of graphene nanoplatelet ink to replace platinum as counter electrode catalyst in flexible dye sensitised solar cell,” Mater. Res. Innov., vol. 18, no. 2, pp. 8690, Feb. 2014.10.1179/1433075X14Y.0000000203
[5] Roy-mayhew, J. D., Bozym, D. J., Punckt, C., and Aksay, I. A., “Functionalized Graphene as a Catalytic Solar Cells,” ACS Nano, vol. 4, no. 10, pp. 62036211, 2010.10.1021/nn1016428
[6] Kavan, L., Yum, J.-H., and Grätzel, M., “Graphene nanoplatelets outperforming platinum as the electrocatalyst in co-bipyridine-mediated dye-sensitized solar cells.,” Nano Lett., vol. 11, no. 12, pp. 5501–6, Dec. 2011.10.1021/nl203329c

Keywords

Optically transparent graphene nanoplatelet inks as low cost electrocatalysts for liquid dye sensitised solar cells

  • J. Baker (a1), T.M. Watson (a2), D. Jones (a3), D. Deganello (a1), D.T. Gethin (a1) and T C Claypole (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed