Surface properties of SnO sub(2) nanowires for enhanced performance with dye-sensitized solar cells

Our recent studies showed that nanowire based DSSCs exhibited over 250 mV higher open circuit potentials (V sub(oc)) compared to those using nanoparticles. In this study, the electron transport and surface properties of nanowires and nanoparticles are investigated to understand the reasons for the o...

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Bibliographic Details
Published in:Energy & environmental science 2009-12, Vol.2 (12), p.1302-1309
Main Authors: Gubbala, S, Russell, H B, Shah, H, Deb, B, Jasinski, J, Rypkema, H, Sunkara, M K
Format: Article
Language:English
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Summary:Our recent studies showed that nanowire based DSSCs exhibited over 250 mV higher open circuit potentials (V sub(oc)) compared to those using nanoparticles. In this study, the electron transport and surface properties of nanowires and nanoparticles are investigated to understand the reasons for the observed higher photovoltages with NW based solar cells. It was seen that, in addition to slow recombination kinetics, the lower work function of SnO sub(2) nanowires compared to the nanoparticle counterparts also significantly contributes to the high V sub(oc) observed for the nanowire based DSSCs.
ISSN:1754-5692
DOI:10.1039/b910174h