Issue Date: August 19, 2013
Through A Window Brightly
Window shades and blinds could become light-blocking relics, thanks to a nanocomposite material that dramatically darkens or simply filters out warm near-infrared light with the flip of a switch. When incorporated in a window, the new material could boost a building’s energy efficiency by keeping out some of the heat from sunlight without blocking visible light.
The new material is electrochromic, meaning that it switches among different light-blocking states when a voltage is applied. Other . . .
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