Abstract
Highly efficient composite films, consisting of silica coated and functionalised silver nanoprisms (SNPs) which are covalently embedded in a PMMA matrix, are presented as a low-cost material to reduce thermal radiation flux with low impact on daylight transmission.
Highlights
Windows are regarded as one of the weakest elements in buildings with regard to insulation, leading to a rather high energy consumption due to either heating or cooling of the interior space
We report a composite film made of silica coated and functionalised triangular silver nanoprisms (SNPs) which are covalently embedded in a poly(methyl methacrylate) (PMMA) matrix as a low-cost material to reduce thermal radiation flux with low impact on daylight transmission
The figures of merit (FOM) values (Table 1 and Fig. S4, Electronic supplementary information (ESI)‡) are higher for the (SNP-2)@SiO2/PMMA than for the (SNP-1)@SiO2/PMMA composites, with higher loading of SNP leading to a reduction of the FOM due to higher absorbance in the visible region
Summary
Windows are regarded as one of the weakest elements in buildings with regard to insulation, leading to a rather high energy consumption due to either heating or cooling of the interior space. Efficient NIR light blockage with matrix embedded silver nanoprism thin films for energy saving window coating†‡
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