May 10, 2018
Energy Factor - by ExxonMobil

Princeton Scientists Work To Harness UV Rays to Power Smart Windows

ExxonMobil is partnering with Princeton’s Andlinger Center for Energy and the Environment, one of several premiere university Energy Centers, to research how the world will meet future energy needs. Just past violet, no longer visible to the human eye, comes ultraviolet, those powerful rays that have a frequency even higher than violet light. In a first-of-its-kind solar technology, Princeton University scientists have found a way to harness near-UV light and use it to power smart windows.

July 13, 2017
The Wall Street Journal

The Smart Windows That Could Be Sunglasses for Your House

Even when shut, windows let in the sun’s light and warmth, which we usually welcome. But sunlight can fade our carpets or wake us up when we’d rather nap; the sun’s heat is sometimes too much in summer; and windows can be peeped into. Some modern windows can block light and heat with the touch of a button, but such “smart windows” usually require electricity, making them expensive and hard to retrofit. Now scientists at Princeton University have invented a technology aimed at smartening up the millions of windows already in place.

June 30, 2017
Princeton University Press

Self-powered system makes smart windows smarter

Smart windows equipped with controllable glazing can augment lighting, cooling, and heating systems by varying their tint, saving up to 40 percent in an average building’s energy costs. These smart windows require power for operation, so they are relatively complicated to install in existing buildings. But by applying a new solar cell technology, researchers at Princeton University have developed a different type of smart window: a self-powered version that promises to be inexpensive and easy to apply to existing windows. This system features solar cells that selectively absorb near-ultraviolet light, so the new windows are completely self-powered.