Resonant-Raman study of Fröhlich exciton–phonon interaction in WS2 nanostructures

2021 ◽  
Author(s):  
Prahalad Kanti Barman ◽  
Prasad V. Sarma ◽  
Manikoth M. Shaijumon ◽  
Rajeev N. Kini
Keyword(s):  
Phonon Interaction ◽  
Raman Study ◽  
Resonant Raman

RESONANT RAMAN SCATTERING AND EXCITON-PHONON INTERACTION IN CdTe / (Cd,Mn)Te QUANTUM WELLS

1987 ◽  
Vol 48 (C5) ◽  
pp. C5-345-C5-348
Author(s):  
S.-K. CHANG ◽  
H. NAKATA ◽  
A. V. NURMIKKO ◽  
L. A. KOLODZIEJSKI ◽  
R. L. GUNSHOR
Keyword(s):  
Raman Scattering ◽  
Quantum Wells ◽  
Phonon Interaction ◽  
Resonant Raman ◽  
Resonant Raman Scattering

High pressure photoluminescence and resonant Raman study of GaAs

1978 ◽  
Vol 25 (4) ◽  
pp. 209-211 ◽  
Author(s):  
Peter Y. Yu ◽  
Benjamin Welber
Keyword(s):  
High Pressure ◽  
Raman Study ◽  
Resonant Raman

scholarly journals Raman study of resonance effects in Ga1−xAlxN solid solutions

1998 ◽  
Vol 3 ◽  
Author(s):  
F. Demangeot ◽  
J. Frandon ◽  
M. A. Renucci ◽  
H. Sands ◽  
D. Batchelder ◽  
...  
Keyword(s):  
Band Gap ◽  
Detailed Comparison ◽  
Peak Position ◽  
Band Gap Energy ◽  
Resonance Effects ◽  
Organic Vapor ◽  
Phonon Peak ◽  
Metal Organic ◽  
Raman Study ◽  
Resonant Raman

The photoluminescence and Raman spectra of several Ga1−xAlxN layers (0 ≤ x ≤ 0.86) grown on sapphire substrates by metal-organic vapor phase epitaxy have been recorded at room temperature, under an excitation at 244 nm. Using the photoluminescence spectra, the variation of the band gap of these alloys can be followed only up to x = 0.5. From resonant Raman scattering, it can be deduced that the band gap energy of the solid solution for x very close to 0.7 corresponds to the incident photon energy (5.08 eV). This result is confirmed by a detailed comparison of the present work with previous experimental data on the A1(LO) phonon peak position, obtained under visible excitation.

EXPERIMANTAL X-RAY RESONANT RAMAN STUDY OF NICKEL

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-827-C9-830
Author(s):  
S. MANNINEN ◽  
P. SUORTTI ◽  
M. J. COOPER ◽  
J. CHOMILIER ◽  
G. LOUPIAS
Keyword(s):  
X Ray ◽  
Raman Study ◽  
Resonant Raman

Breit-Wigner-Fano Lineshape Analysis of the angential G-band of Metallic Nanotubes

2000 ◽  
Vol 633 ◽  
Author(s):  
Sandra D. Brown ◽  
Ado Jorio ◽  
Paola Corio ◽  
Mildred Dresselhaus ◽  
Gene Dresselhaus ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectra ◽  
Line Shape ◽  
Frequency Component ◽  
Lineshape Analysis ◽  
Raman Study ◽  
Resonant Raman ◽  
Band Spectra ◽  
Lorentzian Lineshape ◽  
Diameter Distributions

AbstractWe present a resonant Raman study of the tangential G-band in metallic SWNTs. By measuring the Raman spectra for isolated SWNTs, we show that the two different lineshapes observed for semiconducting and metallic SWNTs in bundles also occur for isolated SWNTs. A lineshape analysis of the tangential G-band feature for metallic SWNT bundles is presented, showing that only two components are present, the higher frequency component having a Lorentzian lineshape, and the lower one having a Breit–Wigner–Fano (BWF) line-shape. Through comparisons of the Raman tangential G-band spectra from three different diameter distributions of carbon nanotubes, we find that both the frequency and linewidth of the BWF component are diameter dependent.

ANOMALOUS ANISOTROPY OF RESONANT RAMAN SCATTERING IN OPEN ZnCdSe/ZnSe NANOWIRES

2003 ◽  
Vol 02 (06) ◽  
pp. 479-485
Author(s):  
V. H. KAIBYSHEV ◽  
V. V. TRAVNIKOV
Keyword(s):  
Raman Scattering ◽  
Phonon Interaction ◽  
Photon Interaction ◽  
Resonant Raman ◽  
Resonant Raman Scattering ◽  
Znse Nanowires

Anomalous strong linear anisotropy of resonant Raman scattering in open ZnCdSe / ZnSe nanowires has been found. The anisotropy value is more than twice as that due to the anisotropy of exciton–photon interaction which is the characteristic for open nanowires. It is suggested that the anomalous anisotropy is connected with different probability of Frohlich exciton–LO phonon interaction at scattering via transverse and longitudinal exciton states.

Tl+Tl0(1)-like dimer centers in KCl and RbCl doped withTl+,In+, andGa+: A resonant Raman study

1990 ◽  
Vol 41 (14) ◽  
pp. 10138-10145 ◽  
Author(s):  
Hilde Fleurent ◽  
Dirk Schoemaker ◽  
Wim Joosen
Keyword(s):  
Raman Study ◽  
Resonant Raman
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