A CubeSat is a type of miniaturized and modular satellite designed for space research or technology demonstration. By filling the unused capacity of major launch vehicles, CubeSats significantly lower the cost of entry to the space. To reduce the energy loss at the solar panel coverglass on CubeSats, the authors investigated the potential of the biomimetic moth-eye antireflection (MEAR) technique which features a gradient refractive index. A novel fabrication process combining nanosphere lithography, reactive-ion etching, and dry oxidation for patterning glass with moth-eye structures was reported that allows for the production of well-defined nanopillars with tunable sidewall profiles. The thermal annealing treatment of colloidal particles was introduced for making MEAR structures for which partial deformation of nanospheres was achieved. The broadband and omnidirectional antireflective performance of fabricated glasses was experimentally demonstrated by using a spectrophotometer and ellipsometer. A significant 10% decrease of reflectance throughout the measured spectral range was observed at a high incident angle of 75°.
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November 2018
Research Article|
November 09 2018
Moth-eye antireflection nanostructure on glass for CubeSats
Yaoze Liu;
Yaoze Liu
1
Department of Electrical and Computer Engineering, University of Waterloo
, 200 University Ave. West, Waterloo, Ontario N2L 3G1, Canada
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Mohammad Soltani;
Mohammad Soltani
1
Department of Electrical and Computer Engineering, University of Waterloo
, 200 University Ave. West, Waterloo, Ontario N2L 3G1, Canada
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Ripon Kumar Dey;
Ripon Kumar Dey
1
Department of Electrical and Computer Engineering, University of Waterloo
, 200 University Ave. West, Waterloo, Ontario N2L 3G1, Canada
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Bo Cui;
Bo Cui
a)
1
Department of Electrical and Computer Engineering, University of Waterloo
, 200 University Ave. West, Waterloo, Ontario N2L 3G1, Canada
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Regina Lee;
Regina Lee
2
Department of Earth and Space Science and Engineering, York University
, 4700 Keele street, Toronto, Ontario M3J 1P3, Canada
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Hugh Podmore
Hugh Podmore
2
Department of Earth and Space Science and Engineering, York University
, 4700 Keele street, Toronto, Ontario M3J 1P3, Canada
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a)
Electronic mail: bcui@uwaterloo.ca
J. Vac. Sci. Technol. B 36, 06JG01 (2018)
Article history
Received:
August 04 2018
Accepted:
October 23 2018
Citation
Yaoze Liu, Mohammad Soltani, Ripon Kumar Dey, Bo Cui, Regina Lee, Hugh Podmore; Moth-eye antireflection nanostructure on glass for CubeSats. J. Vac. Sci. Technol. B 1 November 2018; 36 (6): 06JG01. https://doi.org/10.1116/1.5050986
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