Peculiar optical properties of the white Phalaenopsis Orchid

This contribution reports the high diffuse reflectivity of the white Phalaenopsis Orchid petal in the solar spectrum range and its low diffuse reflectivity in the Infrared. Such an elevated reflectivity was found to be of the order of ~94% comparable to standard high reflective materials including Z...

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Published inJournal of physics. Conference series Vol. 2970; no. 1; pp. 12006 - 12014
Main Authors Botha, N. L., Cloete, J. K., Azizi, Sh, Madiba, I.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2025
Subjects
Barite
Barium sulfate
Optical properties
Reflectance
Titanium dioxide
Zinc oxide
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Summary:This contribution reports the high diffuse reflectivity of the white Phalaenopsis Orchid petal in the solar spectrum range and its low diffuse reflectivity in the Infrared. Such an elevated reflectivity was found to be of the order of ~94% comparable to standard high reflective materials including ZnO (~92%), TiO 2 (~95%), BaSO 4 (~93%). Such an elevated & low reflectivity in the VIS & NIR spectral regions respectively suggest the bio-mimicking of such a Phalaenopsis Orchid petal’s surface for potential radiative cooling applications.
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ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2970/1/012006