scholarly journals Joint density of electronic states for one isolated single-wall carbon nanotube studied by resonant Raman scattering

2001 ◽  
Vol 63 (24) ◽  
Author(s):  
A. Jorio ◽  
A. G. Souza Filho ◽  
G. Dresselhaus ◽  
M. S. Dresselhaus ◽  
R. Saito ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Raman Scattering ◽  
Electronic States ◽  
Joint Density ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Density Of Electronic States ◽  
Resonant Raman ◽  
Resonant Raman Scattering

scholarly journals Tunable Resonant Raman Scattering From Singly Resonant Single Wall Carbon Nanotubes

2006 ◽  
Vol 12 (6) ◽  
pp. 1083-1090 ◽  
Author(s):  
Yan Yin ◽  
Anna K. Swan ◽  
Andy G. Walsh ◽  
A. Nick Vamivakas ◽  
Stephen B. Cronin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Scattering ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Resonant Raman ◽  
Resonant Raman Scattering

Resonant-Raman Scattering of ZnO Crystallites: the Quasi Nature of the LO Mode

2004 ◽  
Vol 831 ◽  
Author(s):  
Xiang-Bai Chen ◽  
John L. Morrison ◽  
Jesse Huso ◽  
Jonathan G. Metzger ◽  
Leah Bergman ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystal ◽  
Electronic States ◽  
Mode Frequency ◽  
Mode Behavior ◽  
Raman Modes ◽  
Resonant Raman ◽  
Resonant Raman Scattering ◽  
Zno Single Crystal ◽  
Size Confinement

ABSTRACTThe Raman modes of ZnO crystallites of the wurtzite structure were investigated via micro-Raman scattering at resonant and out-of-resonant conditions. The E2 mode was the predominant mode in the spectra for out-of-resonant conditions. For the resonant conditions one mode at the spectral range of the LO's of ZnO single crystal was the predominant mode: its frequency was found to be at ∼ 580 cm−1. The A1(LO) and the E1(LO) modes of a reference ZnO single crystal were found to be 568 cm−1 and 586 cm−1 respectively. Two possible mechanisms were considered that may explain the mode frequency of the crystallites: it can be regarded as a confined E1(LO) mode or as a quasi-LO mode. The UV-photoluminescence of the crystallites was found to have the same energy as that of the single crystal ∼ 3.3 eV, indicating the lack of size-confinement of the electronic states in the crystallites, and inter alia that of the phonon states. Our analysis indicated that the observed frequency can be explained in terms of Loudon's model of a quasi-mode behavior which is due to the crystallites tilt.

Raman scattering test of single-wall carbon nanotube composites

2001 ◽  
Vol 78 (21) ◽  
pp. 3193-3195 ◽  
Author(s):  
V. G. Hadjiev ◽  
M. N. Iliev ◽  
S. Arepalli ◽  
P. Nikolaev ◽  
B. S. Files
Keyword(s):  
Carbon Nanotube ◽  
Raman Scattering ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites
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