To turn that heat into electricity, it is directed towards the solar cell by the photonic crystal.

ECONOMIST: Solar power

The other, which faces a specialised type of solar cell made of a material called indium gallium arsenide, is sculpted into a structure called a photonic crystal that causes it to emit infra-red radiation selectively at the frequency best absorbed by the cell.

ECONOMIST: Solar power

In addition to crystal white bodypanels the electric drive design package comprises white alloy rims, a green tridion cell, green mirror caps and numerous green accents in the interior which form an attractive contrast to the black seats.

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