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Wonder spray-on material may replace silicon solar panels

Perovskites, which can harvest light when turned into a crystalline structure, may be on the market by end-2018


IMAGINE a future when solar cells can be sprayed or printed onto the windows of skyscrapers or atop sports utility vehicles - and at prices potentially far cheaper than today's silicon-based panels.

It's not as far-fetched it seems. Solar researchers and company executives...

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