Article ID Journal Published Year Pages File Type
1498457 Scripta Materialia 2014 4 Pages PDF
Abstract

A silicon nanostructure is fabricated in polycrystalline silicon thin films by metal-assisted wet chemical etching using thermally annealed silver nanoparticles as a catalyst. The Si nanostructure has an ant-nest feature. Solar cells based on the silicon nanostructure gives 90% short-circuit current enhancement compared to the cells based on the planar film. We also report that Al2O3 passivation of the silicon nanostructure provides a new approach to improving the polycrystalline silicon thin film’s electrical property. The open-circuit voltage of the Al2O3 passivated cells is improved by 70 mV.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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