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8 March 2014 Tailor-made ZnO@SnO2 networks for high efficiency photovoltaic devices
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Proceedings Volume 8987, Oxide-based Materials and Devices V; 898728 (2014)
Event: SPIE OPTO, 2014, San Francisco, California, United States
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.
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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);

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