Tailor-made ZnO@SnO2 networks for high-efficiency photovoltaic devices

Riccardo Milan; Gurpreet S. Selopal; Isabella Concina; Mauro Epifani; Alberto Vomiero; Giorgio Sberveglieri

doi:10.1117/12.2040382

8 March 2014 Tailor-made ZnO@SnO₂ networks for high efficiency photovoltaic devices

Riccardo Milan, Gurpreet S. Selopal, Isabella Concina, Mauro Epifani, Alberto Vomiero, Giorgio Sberveglieri

Proceedings Volume 8987, Oxide-based Materials and Devices V; 898728 (2014) https://doi.org/10.1117/12.2040382
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

ZnO@SnO₂ multilayered network was deposited on fluorine doped tin oxide (FTO) glass and applied as photoanode in dye sensitized solar cells whose functional performances are compared with single oxide-based photoanodes made of SnO₂ nanoparticles and ZnO microparticles. Multi-oxide photoanodes provide for enhanced photoconversion efficiency (3.31%) as compared with bare SnO₂ nanoparticles (1.06%) and ZnO microparticles (1.04%). Improved functional performances of the ZnO@SnO₂ layered network are ascribable to partial inhibition of back electron transfer from SnO₂ to the redox electrolyte, guaranteed by the ZnO, which acts as a capping layer for the underlying SnO₂.

Citation Download Citation

Riccardo Milan, Gurpreet S. Selopal, Isabella Concina, Mauro Epifani, Alberto Vomiero, and Giorgio Sberveglieri "Tailor-made ZnO@SnO₂ networks for high efficiency photovoltaic devices", Proc. SPIE 8987, Oxide-based Materials and Devices V, 898728 (8 March 2014); https://doi.org/10.1117/12.2040382

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