Journal
NANO LETTERS
Volume 8, Issue 2, Pages 446-451Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl072369t
Keywords
-
Ask authors/readers for more resources
An ideal black material absorbs light perfectly at all angles and over all wavelengths. Here, we show that low-density vertically aligned carbon nanotube arrays can be engineered to have an extremely low index of refraction, as predicted recently by theory (Garcia-Vidal, F. J.; Pitarke, J. M.; Pendry, J. B. Phys. Rev. Leff. 1997, 78, 42894292] and, combined with the nanoscale surface roughness of the arrays, can produce a near-perfect optical absorption material. An ultralow diffused reflectance of 1 X 10(-7) measured from such arrays is an order-of-magnitude lower compared to commercial low-reflectance standard carbon. The corresponding integrated total reflectance of 0.045% from the nanotube arrays is three times lower than the lowest-ever reported values of optical reflectance from any material, making it the darkest man-made material ever.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available