Chemists create tinted windows that also generate electricity

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http://news.berkeley.edu/story_jump/chemists-create-tinted-windows-that-also-generate-electricity/

Source:  By Robert Sanders, UC Berkeley News

Excerpt: A new discovery by Berkeley researchers may soon bring us windows that automatically tint on a sunny day to block the heat while also generating electricity. Peidong Yang, a professor of chemistry and faculty scientist at Berkeley Lab, and his colleagues have tweaked the chemical structure of perovskite — a versatile material that already rivals silicon-based solar cells — so that the material turns from transparent to opaque when heated and also converts sunlight into electricity. The invention could lead to power-producing smart windows for buildings, cars and display screens, according to the authors of the study, who reported the development today in the journal Nature Materials.... 

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