PT Journal
AU Eletskii, AV
   Sarychev, AK
   Boginskaya, IA
   Bocharov, GS
   Gaiduchenko, IA
   Egin, MS
   Ivanov, AV
   Kurochkin, IN
   Ryzhikov, IA
   Fedorov, GE
TI Amplification of a Raman scattering signal by carbon nanotubes
SO Dokl. Phys.
JI Dokl. Phys.
PY 2018
BP 496
EP 498
VL 63
IS 12
DI 10.1134/S1028335818120066
DE carbon nanotubes; CNT; Raman scattering; RLS
AB The effect of Raman scattering (RLS) signal amplification by carbon nanotubes (CNTs) was studied. Single-layered nanotubes were synthesized by the chemical vapor deposition (CVD) method using methane as a carbon-containing gas. The object of study used was water, the Raman spectrum of which is rather well known. Amplification of the Raman scattering signal by several hundred percent was attained in our work. The maximum amplification of a Raman scattering signal was shown to be achieved at an optimal density of nanotubes on a substrate. This effect was due to the scattering and screening of plasmons excited in CNTs by neighboring nanotubes. The amplification mechanism and the possibilities of optimization for this effect were discussed on the basis of the theory of plasmon resonance in carbon nanotubes.
ER