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

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.


Tutti gli autori

  • Milan R.; Selopal G.S.; Concina I.; Epifani M.; Vomiero A.; Sberveglieri G.

Titolo volume/Rivista

Proceedings of SPIE, the International Society for Optical Engineering


Anno di pubblicazione

2014

ISSN

0277-786X

ISBN

Non Disponibile


Numero di citazioni Wos

Nessuna citazione

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Settori ERC

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Codici ASJC

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