Spectrally selective coatings of gold nanorods on architectural glass

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Journal Article
Journal of nanoparticle Research, 2010, 12 (8), pp. 2821 - 2830
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Infrared-blocking coatins n window glass can be produced by dispersing gold nanorods into a polymer coating. The spectral selectivity of the coating is controlled by the shape and aspect ration of the nanoparticles, which are in turn determined by the conditions applied during their synthesis. Coatings of nanorods in polyvinyl alcohol were deposited onto glass and characterised in both laboratory and sun-lit conditions. Selective attenuation of the near-infrared was demonstrated with the test panels transmitting approximately one-third of the incident solar radiatyion and absorbing nearly two-thirds. The high absoprtive cross sections of the gold nanorods suggest that they can be applied in efficacious coatings at relatively low volume fractions.
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