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US 12,715,808 B2Granted
Smart coatings
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsSohrab Mofid, Lei Zhai, David Fox
Life of this patent
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Abstract
In accordance with at least one aspect of this disclosure, a thermochromic window can include a first transparent layer, a second transparent layer, and a thermochromic fiber layer sandwiched between the first transparent layer and the second transparent layer. In certain embodiments, the thermochromic fiber layer may be embedded in the second transparent layer. The thermochromic window can be configured to selectively absorb or reflect infrared radiation (IR) as a function of a critical temperature.
Claims14
A thermochromic window, comprising:
- a thermochromic fiber layer configured to block or permit transmission of electromagnetic radiation through the thermochromic fiber layer as a function of a temperature of the thermochromic fiber layer wherein the thermochromic fiber layer includes an electrospun nanofiber mat comprised of VO2 nanoparticles,
- wherein the thermochromic fiber layer further includes a matrix formed from a polymer and a solvent,
- wherein the polymer includes one of polyvinylpyrrolidone (PVP), polyvinyl butyral (PVB), polyethylene oxide (PEO), or polyvinyl alcohol (PVA),
- wherein the matrix includes about 1% by weight VO2 nanoparticles relative to polymer, about 19% by weight polymer relative to solvent, and about 80% by weight solvent.
1 more element
Dependencies are inferred from the claim text.