Carbon Nanotube (CNT) Honeycomb Cell Area-Dependent Optical Reflectance.
The relationship between the physical structure of carbon nanotube (CNT) honeycomb structures and their total, diffuse, and specular reflectance is investigated for the first time. It is found that CNT honeycomb structures with average cell areas of smaller than 30 μm² show a higher total reflectance. Particularly, a thinner, highly packed CNT (buckypaper) film, along with a larger wall height and higher ratio of wall height to cell area, markedly increase the total reflectance for cell areas smaller than 30 μm², which means that a higher total area of buckypapers in CNT walls and bottom areas increases the total reflectance, including the diffuse reflectance. It is also found that the total reflection of non-absorbed light in CNT honeycomb structures consists primarily of diffuse reflectance.
Department of Electronic and Photonic Systems Engineering, Kochi University of Technology, Tosayamada-cho, Kami, Kochi 782-8502, Japan. 178002a@gs.kochi-tech.ac.jp.
Junthorn
J
Udorn
Department of Electronic and Photonic Systems Engineering, Kochi University of Technology, Tosayamada-cho, Kami, Kochi 782-8502, Japan. hatta.akimitsu@kochi-tech.ac.jp.|Center for Nanotechnology, Research Institute, Kochi University of Technology, Tosayamada-cho, Kami, Kochi 782-8502, Japan. hatta.akimitsu@kochi-tech.ac.jp.
Akimitsu
A
Hatta
Department of Electronic and Photonic Systems Engineering, Kochi University of Technology, Tosayamada-cho, Kami, Kochi 782-8502, Japan. furuta.hiroshi@kochi-tech.ac.jp.|Center for Nanotechnology, Research Institute, Kochi University of Technology, Tosayamada-cho, Kami, Kochi 782-8502, Japan. furuta.hiroshi@kochi-tech.ac.jp.
Hiroshi
H
Furuta
CNT honeycomb structures; carbon nanotube (CNT); diffuse; specular reflectances; total