K
Kentaro Sato
Researcher at Tohoku University
Publications - 56
Citations - 1791
Kentaro Sato is an academic researcher from Tohoku University. The author has contributed to research in topics: Raman spectroscopy & Carbon nanotube. The author has an hindex of 21, co-authored 53 publications receiving 1653 citations.
Papers
More filters
Journal ArticleDOI
D-band Raman intensity of graphitic materials as a function of laser energy and crystallite size
Kentaro Sato,Riichiro Saito,Yutaka Oyama,Jie Jiang,Luiz Gustavo Cançado,Marcos A. Pimenta,Ado Jorio,Ge. G. Samsonidze,G. Dresselhaus,M. S. Dresselhaus +9 more
TL;DR: In this paper, the Raman intensity of the disorder-induced D-band in graphitic materials is calculated as a function of the in-plane size of the graphite nanoparticles (La) and as a result of the excitation laser energy.
Journal ArticleDOI
Raman characterization of ABA- and ABC-stacked trilayer graphene
Chunxiao Cong,Ting Yu,Ting Yu,Kentaro Sato,Jingzhi Shang,Riichiro Saito,Gene Dresselhaus,Mildred S. Dresselhaus +7 more
TL;DR: A systematic experimental and theoretical analysis of the Raman modes in bothBernal (ABA stacking order) and rhombohedral trilayer graphene (3LG) shows that the G band, G' (2D) band, and the intermediate-frequency combination modes of 3LGs are sensitive to the stacking order of 3LG.
Journal ArticleDOI
Photoluminescence intensity of single-wall carbon nanotubes
Yutaka Oyama,Riichiro Saito,Kentaro Sato,Jie Jiang,Ge. G. Samsonidze,Alexander Grüneis,Yuhei Miyauchi,Shigeo Maruyama,Ado Jorio,Ado Jorio,G. Dresselhaus,M. S. Dresselhaus +11 more
TL;DR: In this paper, the photoluminescence (PL) intensity of a single-wall carbon nanotube (SWNT) is calculated for each ( n, m ) by multiplying the photon-absorption, relaxation and photon-emission matrix elements.
Journal ArticleDOI
Dependence of exciton transition energy of single-walled carbon nanotubes on surrounding dielectric materials
Yuhei Miyauchi,Riichiro Saito,Kentaro Sato,Yutaka Ohno,Shinya Iwasaki,Takashi Mizutani,Jie Jiang,Shigeo Maruyama +7 more
TL;DR: In this paper, the authors theoretically investigate the environmental effect for optical transition energies of single-walled carbon nanotubes (SWNTs) by calculating the exciton transition energies, in which the static and dynamic dielectric constants represent the screening effect of core electrons and the valence π electrons, respectively.
Journal ArticleDOI
Spin-Orbit Interaction in Single Wall Carbon Nanotubes: Symmetry Adapted Tight-Binding Calculation and Effective Model Analysis
TL;DR: In this paper, the energy gap opened by spin-orbit interaction for armchair nanotubes, and the energy band splitting for chiral and zigzag nanotsubes are evaluated quantitatively.