Nanoparticle-doped Polymer Foils for Use in Solar Control Glazing
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Since nanoparticles can provide spectrally selective absorption without scattering they can be used to dope polymers for use in windows, to provide a clear view while strongly attenuating both solar heat gain and UV, at lower cost than alternative technologies. The underlying physics and how it influences the choice and concentration of nanoparticle materials is outlined. Spectral data, visible and solar transmittance, and solar heat gain coefficient are measured for clear polymers and some laminated glass, in which the polymer layer is doped with conducting oxide nanoparticles. Simple models are shown to apply making general optical design straightforward. Use with clear glass and tinted glass is considered and performance shown to match existing solar control alternatives. A potential for widespread adoption in buildings and cars is clearly demonstrated, and scopes for further improvements are identified, so that ultimately both cost and performance are superior.
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Journal of Nanoparticle Research
Volume 4, Issue 1-2 , pp 157-165
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- Kluwer Academic Publishers
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- effective medium theory
- laminated windows
- metal oxides
- NIR absorption
- solar control glazing
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