Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Ge. G. Samsonidze"'
Autor:
Jie Jiang, Federico Villalpando-Paez, Shin Grace Chou, G. Dresselhaus, Morinobu Endo, Ge. G. Samsonidze, A. G. Souza Filho, Ado Jorio, Yoong Ahm Kim, Riichiro Saito, M. S. Dresselhaus
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 37:81-87
Although the Raman effect was discovered nearly 80 years ago, it is only recently that the special characteristics of Raman scattering for one-dimensional systems have been seriously considered. This review focuses on the special interest of the Rama
Autor:
Jie Jiang, Ge. G. Samsonidze, Kentaro Sato, Alexander Grüneis, Luiz Gustavo Cançado, Cristiano Fantini, Riichiro Saito, Marcos A. Pimenta, Shin Grace Chou, Ado Jorio, M. S. Dresselhaus, Yutaka Oyama, G. Dresselhaus
Publikováno v:
Molecular Crystals and Liquid Crystals. 455:287-294
We discuss here how the trigonal warping effect of the electronic structure is relevant to optical processes in graphite and carbon nanotubes. The electron-photon, electron-phonon, and elastic scattering matrix elements have a common factor of the co
Autor:
G. Dresselhaus, Yutaka Oyama, Ge. G. Samsonidze, Luiz Gustavo Cançado, Kentaro Sato, Ado Jorio, Jie Jiang, Marcos A. Pimenta, Riichiro Saito, M. S. Dresselhaus
Publikováno v:
Chemical Physics Letters. 427:117-121
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 function of the excitation laser energy. Matrix elements associated with the double
Autor:
Ge. G. Samsonidze, Riichiro Saito, Kentaro Sato, Ado Jorio, M. S. Dresselhaus, Yuhei Miyauchi, Shigeo Maruyama, Alexander Grüneis, G. Dresselhaus, Jie Jiang, Yutaka Oyama
Publikováno v:
Carbon. 44:873-879
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. The intensity depends on chirality and “type I vs ty
Autor:
Ge. G. Samsonidze, Jie Jiang, G. Dresselhaus, Riichiro Saito, M. S. Dresselhaus, Ado Jorio, Shin Grace Chou
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 29:443-446
A review is given of how resonance Raman spectroscopy (RRS) and photoluminescence (PL) can be used to reveal unique information about nanostructures, 1 nm in diameter, thus providing new techniques for probing the electronic and vibrational propertie
Autor:
F. Plentz Filho, H. B. Ribeiro, E.D. Semke, Ge. G. Samsonidze, M.S. Unlu, Ana Paula Pires dos Santos, Anna K. Swan, G. Dresselhaus, G. B. Onoa, D. Nezich, Riichiro Saito, Mildred S. Dresselhaus, Marcos A. Pimenta, Ado Jorio, Shin Grace Chou, Bennett B. Goldberg, Cristiano Fantini, Ming Zheng, Eduardo B. Barros
Publikováno v:
Chemical Physics Letters. 397:296-301
Optical characterization of DNA-wrapped CoMoCAT carbon nanotube hybrids (DNAOCNT) and semiconductor-enriched DNAOCNT was carried out using resonant Raman spectroscopy (RRS) and photoluminescence (PL) experiments. The values of radial breathing modes
Autor:
G. Dresselhaus, Riichiro Saito, Ado Jorio, M. S. Dresselhaus, A. G. Souza Filho, Jie Jiang, Ge. G. Samsonidze, Marcos A. Pimenta, Alexander Grüneis
Publikováno v:
Chemical Physics Letters. 387:301-306
We calculated the resonance condition for the radial breathing Raman mode for single wall carbon nanotube (SWNT) bundles for light polarization parallel and perpendicular to the tube axis. The radial breathing modes that are not observed in isolated
Autor:
Paulo Sérgio Medeiros dos Santos, Paola Corio, Shin Grace Chou, Victor W. Brar, Ge. G. Samsonidze, Mildred S. Dresselhaus
Publikováno v:
Chemical Physics Letters. 370:675-682
The analysis of the resonance Raman spectra of single-walled carbon nanotubes in an electrochemically controlled aqueous H2SO4 environment using different laser excitation energies shows major reversible and irreversible differences in the main vibra
Autor:
G. Dresselhaus, Ge. G. Samsonidze, Riichiro Saito, A. G. Souza Filho, M. S. Dresselhaus, Ado Jorio
Publikováno v:
Journal of Nanoscience and Nanotechnology. 3:19-37
A review is presented of the resonance Raman spectra from individual isolated single-wall carbon nanotubes (SWNTs). A brief summary is given of how the measurements are made. Why the resonance Raman effect allows single-carbon nanotube spectra to be
Autor:
G. Dresselhaus, Riichiro Saito, M. S. Dresselhaus, Yuxuan Lin, A. G. Souza Filho, Ado Jorio, Oded Rabin, Ge. G. Samsonidze, Marcos A. Pimenta
Publikováno v:
Materials Science and Engineering: C. 23:129-140
Nanowires and nanotubes are now at the forefront of materials science at the nanoscale. This article starts with introductory comments about nanowires and nanotubes and then addresses in more detail the special structure and properties of bismuth nan