Single-walled carbon nanotubes for more efficient III-V solar cells

Russian researchers have improved the efficiency of a thin-fim GaAs-based solar cell by 0.9% by applying single-walled carbon nanotubes as the topmost layer. The cell also showed a slight increase in the short circuit current density, from 16.9 to 17.9 mA/cm2.Scientists from the Saint Petersburg Academic University in Russia claim to have raised the efficiency of gallium arsenide (GaAs) solar cells from 10.6% to 11.5% by using single-walled carbon nanotubes (SWCNTs) instead of conventional metal grid contacts. Traditional metal grid contacts are able to provide transparency, but they also require ...

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