Powder morphology, refractive index and extinction coefficient, illustration of lattice distortion, spectral radiation curve and passive daytime radiation cooling performance of Zn-doped SrZrO3 (IMAGE)

Tsinghua University Press

Powder morphology, refractive index and extinction coefficient, illustration of lattice distortion, spectral radiation curve and passive daytime radiation cooling performance of Zn-doped SrZrO3

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The Zn doping caused the grain morphology of SrZrO3 to change from individual particle state to sheet-like. The doping of Zn causes an increase in the refractive index of SrZrO3 crystals in the 0.3 - 2.5 μm wavelength range, while the extinction coefficient remains unchanged within this wavelength range. The doping of Zn leads to lattice distortion and a decrease in lattice symmetry in SrZrO3 crystals. Under the influence of Zn doping, the solar light reflectivity and atmospheric transparent window emissivity of SrZrO3 crystals increase, ultimately enabling the Zn-modified SrZrO3 crystals to have a higher passive daytime radiative cooling performance compared to the unmodified SrZrO3 crystals.

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Journal of Advanced Ceramics, Tsinghua University Press

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