Dynamically Responsive Infrared Window Coatings
Lead Performer: Pacific Northwest National Laboratory - Richland, WA
Buildings
June 13, 2014
min
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Caption
An oxygen plasma etcher is used to clean test substrates for window coatings.
Credit
Pacific Northwest National Laboratory
Caption
PNNL scientist Dr. Kyle Alvine checks on the progress of the plasma etch.
Credit
Pacific Northwest National Laboratory
Caption
PNNL scientist begins fabrication of a prototype window coating.
Credit
Pacific Northwest National Laboratory
Caption
Solution is deposited in preparation for spin-coating of a lab-scale nanostructured coating.
Credit
Pacific Northwest National Laboratory
Caption
PNNL scientist inspects a prototype nanostructured window coating.
Credit
Pacific Northwest National Laboratory
Caption
An oxygen plasma etcher is used to clean test substrates for window coatings.
Credit
Pacific Northwest National Laboratory
An oxygen plasma etcher is used to clean test substrates for window coatings.
Pacific Northwest National Laboratory
Caption
PNNL scientist Dr. Kyle Alvine checks on the progress of the plasma etch.
Credit
Pacific Northwest National Laboratory
PNNL scientist Dr. Kyle Alvine checks on the progress of the plasma etch.
Pacific Northwest National Laboratory
Caption
PNNL scientist begins fabrication of a prototype window coating.
Credit
Pacific Northwest National Laboratory
PNNL scientist begins fabrication of a prototype window coating.
Pacific Northwest National Laboratory
Caption
Solution is deposited in preparation for spin-coating of a lab-scale nanostructured coating.
Credit
Pacific Northwest National Laboratory
Solution is deposited in preparation for spin-coating of a lab-scale nanostructured coating.
Pacific Northwest National Laboratory
Caption
PNNL scientist inspects a prototype nanostructured window coating.
Credit
Pacific Northwest National Laboratory
PNNL scientist inspects a prototype nanostructured window coating.
Pacific Northwest National Laboratory
Lead Performer: Pacific Northwest National Laboratory - Richland, WA
Partners: PPG Industries - Pittsburgh, PA
DOE Funding: $750,000
Cost Share: $78,000
Project Term: October 1, 2013 – June 30, 2016
Project Objective
This project is developing a low-cost, visibly transparent, passively switchable dynamic infrared (IR) window coating that integrates IR-reflective sub-wavelength nanostructures in a buckling layer. The reversible buckling effect switches from transmitting to reflecting in the IR only as the window coating temperature increases. Two prototype films will be created: (1) a laboratory-scale (1 inch) dynamic IR-responsive coating with a near-infrared (NIR) transmission delta of 20% and a visible transmission of greater than 50%, as well as a temperature switching window in the 30°–90°C range; and (2) a bench-scale (6 inch) integrated buckling and sub-wavelength film with an average NIR transmission delta of 10%–15% (over 750–900 nanometers), an average visible transmission of at least 50%, and a temperature switching window in the 30°–90°C range.
Contacts
DOE Technology Manager: Karma Sawyer
Performer: Kyle Alvine, Pacific Northwest National Laboratory
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