|UB's Sarbajit Banerjee with a scanning electron microscopy image of tungsten-doped vanadium-oxide nanowires, which have a phase transition temperature close to room temperature|
(PhysOrg.com) -- New materials science research from the University at Buffalo could hasten the creation of "smart" windows that reflect heat from the sun on hot summer days but let in the heat in colder weather.
"By preparing vanadium oxide as a nanomaterial instead of in bulk, the scientists managed to lower the compound's trigger point from 153 degrees Fahrenheit to 90. Doping vanadium oxide nanowires with tungsten brought the temperature down further, to 7 degrees Fahrenheit. Molybdenum doping had a similar but smaller effect."
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