Abstract

Carbon nanotubes (CNTs) and graphene have attracted the attention to the application because of their superior electrical, thermal and photonic properties. Various applications in optical devices for photonic metamaterial [1], solar cells[2] and emission from floating graphene[3] are expected. The frost column-like CNT forest[4,5], a carbon film of the two-dimensional structure supported by CNT forest of one-dimensional structure, is expected as a floating mirror or a floating thin film on substrate. In previous reports anisotropic optical properties of the frost column-like CNT forest on th-SiO (t100nm) substrates in those anisotropic infrared absorption and light interference between the carbon film and the substrate[6,7] were observed. Growth of the frost column-like CNT forests on various substrates is required to develop further optical and electric applications. However, frost column-like CNT forest growth on a AlO layers with underlying metal film as electrode and mirror have not been reported yet. In this report, growth of the frost column-like CNT forests on alumina layer was investigated.

© 2016 Japan Society of Applied Physics, Optical Society of America