Paper
28 September 2011 Hemispherical reflectance and emittance properties of carbon nanotubes coatings at infrared wavelengths
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Abstract
Recent visible wavelength observations of Multiwalled Carbon Nanotubes (MWCNT) coatings have revealed that they represent the blackest materials known in nature with a Total Hemispherical Reflectance (THR) of less than 0.25%. This makes them exceptionally good as absorbers, with the potential to provide order-ofmagnitude improvement in stray-light suppression over current black surface treatments when used in an optical system. Here we extend the characterization of this class of materials into the infrared spectral region to further evaluate their potential for use on instrument baffles for stray-light suppression and to manage spacecraft thermal properties through radiant heat transfer process. These characterizations will include the wavelength-dependent Total Hemispherical Reflectance (THR) properties in the mid- and far-infrared spectral regions (2-110 μm). Determination of the temperature-dependent emittance will be investigated in the temperature range of 40 to 300 K. These results will be compared with other more conventional black coatings such as Acktar Fractal Black or Z306 coatings among others.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Manuel A. Quijada, John G. Hagopian, Stephanie Getty, Raymond E. Kinzer Jr., and Edward J. Wollack "Hemispherical reflectance and emittance properties of carbon nanotubes coatings at infrared wavelengths", Proc. SPIE 8150, Cryogenic Optical Systems and Instruments XIII, 815002 (28 September 2011); https://doi.org/10.1117/12.894601
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Cited by 17 scholarly publications.
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KEYWORDS
Reflectivity

Silicon

Calibration

Carbon nanotubes

Infrared radiation

Optical spheres

Integrating spheres

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