http://news.nationalgeographic.com/news/2005/01/0114_050114_solarplastic.html
Harnesses infra-red instead of just visible light as current solar cells do, so in theory you could aim it at a steaming pile of shit and charge your cellphone.
Harnesses infra-red instead of just visible light as current solar cells do, so in theory you could aim it at a steaming pile of shit and charge your cellphone.