Fig. 3


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The reflectance spectrum (red) of our super-cool material across the solar and thermal radiation spectral ranges. Superimposed (scaled to their maximum values) for reference are the AM1.5 solar intensity spectrum (blue) and the Planck black body spectrum (green). Rsol is 97%, and emittance is very high within the clear sky transparent zone, which is shown shaded. The right image shows this surface in summer sunlight above a white commercial cool roof.

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