Graphene Effect on Efficiency of TiO2-based Dye Sensitized Solar Cells (DSSC)

Authors

  • Nguyen Thai Ha Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi
  • Pham Duy Long Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi
  • Nguyen Thanh Trung Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi
  • Le Van Hong Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi

DOI:

https://doi.org/10.15625/0868-3166/26/1/7961

Keywords:

graphene sheets (GS), dye sensitized solar cells (DSSC),

Abstract

Colloidal paste of TiO2 embedded with graphene (GS) was fabricated and used to spread TiO\(_2\) film photo-electrode of DSSC solar cells. The dye N179 and Iodine-based electrolyte were used in the DSSC solar cells. Raman scattering, SEM images were used to identify the material phases and microstructure of the film photo-electrode. I/V characteristics of the DSSC cells were recorded at room temperature. Open-circuit voltage Voc, short-current \(J_{sc}\) and efficiency η of the DSSC cells were estimated. It shows that graphene addition has affected on \(V_{oc}\),\(J_{sc}\) and \(\eta\). The \(V_{oc}\),\(J_{sc}\) and \(\eta\) abnormally depend on graphene content. The efficiency reached a maximal value with graphen concentration of 0.005 wt %, after that decreased. It is supposed to be related with an improving the charge transfer in the working photo-electrode of DSSC.

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Published

18-07-2016

How to Cite

Ha, N. T., Long, P. D., Trung, N. T., & Hong, L. V. (2016). Graphene Effect on Efficiency of TiO2-based Dye Sensitized Solar Cells (DSSC). Communications in Physics, 26(1), 43. https://doi.org/10.15625/0868-3166/26/1/7961

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Papers

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