Publications by authors named "Pilar Espinet-Gonzalez"
We report the design, fabrication, and characterization of ultralight coatings that employ Salisbury screen principles and the unique nature of ITO to achieve frequency selective broadband emissivity. Our coating comprises 60 nm SiO, 10 nm ITO, 2.3 µm NeXolv LaRC CP1 polyimide and 300 nm Ag, and achieves an aerial mass of 4.
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- Space power systems need lightweight and efficient solar panels to operate in harsh space conditions for long durations.
- Current high-efficiency solar cells face limitations due to the need for heavy radiation shielding, which reduces their power-to-weight ratio.
- III-V nanowire-array solar cells show significantly better radiation performance than traditional planar designs, potentially allowing for lighter solar cells with improved longevity and efficiency in space.
We report the design, fabrication, and characterization of ultralight highly emissive structures with a record-low mass per area that emit thermal radiation efficiently over a broad spectral (2 to 30 microns) and angular (0-60°) range. The structures comprise one to three pairs of alternating metallic and dielectric thin films and have measured effective 300 K hemispherical emissivity of 0.7 to 0.
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