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Scalable preparatio...
Scalable preparation of broadband ultrablack graphite nanoneedle surfaces through self-masked etching
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Guo, T. (författare)
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Sun, Y. (författare)
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- He, Sailing (författare)
- KTH,Elektroteknisk teori och konstruktion
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Yang, J. (författare)
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Hu, M. (författare)
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Mu, W. (författare)
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Evans, J. (författare)
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(creator_code:org_t)
- Electromagnetics Academy, 2018
- 2018
- Engelska.
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Ingår i: Progress In Electromagnetics Research C. - : Electromagnetics Academy. - 1937-8718. ; 81, s. 191-197
- Relaterad länk:
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https://doi.org/10.2...
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https://www.jpier.or...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- Ultrablack materials play an essential role in astronomical observation and many thermal applications. Many material systems such as vertically aligned carbon nanotubes have produced extraordinarily high absorption, but require complicated fabrication. Here we report a single step self-masked etching process performed on compressed-coal graphite plates on a silicon substrate, which produces an ultrablack material with 0.7% hemispherical reflectance in the visible region and specular reflectance below 0.7% between 850 nm and 10 µm. Nanoscopic pieces of silicon are ripped off the substrate and deposit on the graphite resulting in carbon nanoneedle structures, which grow linearly with etching time reaching a height of 5.7 µm after 60 minutes.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Graphite
- Nanoneedles
- Reflection
- Substrates
- Astronomical observation
- Carbon nanoneedles
- Hemispherical reflectance
- Material systems
- Silicon substrates
- Specular reflectance
- Thermal applications
- Vertically aligned carbon nanotube
- Etching
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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