A super dark material: Randomness and porosity in a nanostructure

Zu-Po Yang, S. Y. Lin, J. A. Bur, L. Ci, P. M. Ajayan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, we report the realization of a low-density vertically aligned carbon nanotube (VA-CNT) array and show that it can have an ultra-low total reflectance due to its nanoscale surface roughness and low index of refraction as recently predicted by theories [1]. Our VA-CNT arrays have a total reflectance R=0.1%, which is 60%-80% lower than the previously reported lowest value, making it the best candidate for an ideal, all-angle, all-wavelength optical absorber.

Original languageEnglish
Title of host publicationNanophotonics and Macrophotonics for Space Environments
DOIs
StatePublished - 1 Dec 2007
EventNanophotonics and Macrophotonics for Space Environments - San Diego, CA, United States
Duration: 27 Aug 200728 Aug 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6713
ISSN (Print)0277-786X

Conference

ConferenceNanophotonics and Macrophotonics for Space Environments
CountryUnited States
CitySan Diego, CA
Period27/08/0728/08/07

Keywords

  • Carbon nantubes
  • Optical absorber
  • Randomness scattering
  • Super dark material

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    Yang, Z-P., Lin, S. Y., Bur, J. A., Ci, L., & Ajayan, P. M. (2007). A super dark material: Randomness and porosity in a nanostructure. In Nanophotonics and Macrophotonics for Space Environments [67130N] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6713). https://doi.org/10.1117/12.732441