Optical absorption spectra of B C3 nanotubes are studied within the gradient approximation. B C3 nanotubes exhibit rich absorption peaks in the overall frequency because of a lot of one-dimensional energy bands. The threshold absorption frequency is ∼0.15 γ0 for all B C3 nanotubes. Absorption peaks are mainly determined by the chirality, radius, and magnetic flux. B C3 nanotubes quite differ from carbon nanotubes in the low- and high-frequency absorption spectra. The calculated results are roughly consistent with the optical measurements, such as the threshold absorption frequency and the existence of the low-frequency absorption peaks.
|頁（從 - 到）||46-49|
|期刊||Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures|
|出版狀態||Published - 2006 1月|
All Science Journal Classification (ASJC) codes