Boosting dye-sensitized solar cell efficiency using AgVO3-doped TiO2 active layer

Hatem, T., Elmahgary, M. G., Ghannam, R. , Ahmed, M. A. and Abdellatif, S. O. (2021) Boosting dye-sensitized solar cell efficiency using AgVO3-doped TiO2 active layer. Journal of Materials Science: Materials in Electronics, 32, pp. 25318-25326. (doi: 10.1007/s10854-021-06990-4)

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Abstract

Dye-sensitized solar cells have shown great potential in low and self-powered nano/micro-scale applications, due to their low fabrication costs, semi-transparency in the visible spectrum, diffused light harvesting capabilities, and their lead-free structure. However, DSSC efficiencies are still relatively low due to their limited absorption capabilities in the active mesoporous layer. The current study demonstrates an attempt to boost the overall conversion efficiency of DSSC by narrowing the energy band gap of the mesoporous TiO2 active layer. AgVO3 is utilized in doping the mesoporous layer, seeking for a visible absorption shift from 3.2 eV to 2.6 eV. In addition, natural organic beetroot dye is used while keeping DSSC with N719 dye as a bare cell. Morphological, optical, as well as electrical characterization results were obtained for both thin-film and complete solar cells. The fabricated cell showed an overall harvested power density of 8.6 mW/cm2, capable of operating various low-power sensing applications.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ghannam, Dr Rami
Authors: Hatem, T., Elmahgary, M. G., Ghannam, R., Ahmed, M. A., and Abdellatif, S. O.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Journal of Materials Science: Materials in Electronics
Publisher:Springer
ISSN:0957-4522
ISSN (Online):1573-482X

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