Optical properties of armchair (7, 7) single walled carbon nanotubes

Optical Properties of Single-walled Carbon Nanotubes and Nanobuds

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Ying Tian Name of the doctoral dissertation Optical properties of single-walled carbon nanotubes and nanobuds Publisher School of Science Unit Department of Applied Physics Series Aalto University publication series DOCTORAL DISSERTATIONS 77/2012 Field of research Nanomaterials, physics Manuscript submitted 12 March 2012 Manus...

Optical Absorption Properties of Single-Walled Carbon Nanotubes

Single-walled carbon nanotubes (SWNTs) are 1 dimensional (1D) tubular material with sp bonded graphene wall. Their unique geometry gives rise to sharp divergences in electronic density of states and consequently leads to characteristic discrete energy subbands. Since these inter-subband energy corresponds to near infrared (NIR) to visible (vis) range, many innovative optical application of SWNT...

Optical properties of single-walled 4 A carbon nanotubes.

Optical properties of a series of finite sized hydrogenated carbon nanotubes with the smallest diameter of 4 A are studied systematically. Their absorption spectra are calculated with the localized-density-matrix method. The semiempirical MNDO parametric method 3 (PM3) Hamiltonian is employed. The finite optical gaps are predicted for the infinite long single-walled carbon nanotubes. Strong ani...

Optical Spectroscopy of Single-Walled Carbon Nanotubes

Electronic Properties of Single-Walled Carbon Nanotubes

This communication describes scanning tunnelling microscopy investigations of the electronic properties of singlewalled carbon nanotubes (SWNTs). First, the unique relationship between the atomic structure and electronic properties of SWNTs is presented. Second, structural defects in nanotubes are addressed, and quantum size effects in SWNTs are discussed. Lastly, the effects of magnetic impuri...