Anomalous first-order Raman scattering in III-V quantum dots: Optical deformation potential interaction

2008 ◽  
Vol 78 (8) ◽  
Author(s):  
Anabela G. Rolo ◽  
Mikhail I. Vasilevskiy ◽  
Mimoun Hamma ◽  
Carlos Trallero-Giner
Keyword(s):  
Quantum Dots ◽  
Raman Scattering ◽  
Potential Interaction ◽  
Deformation Potential ◽  
First Order

FIRST ORDER RAMAN SCATTERING FROM SEMICONDUCTOR QUANTUM DOTS

1989 ◽  
Vol 03 (08) ◽  
pp. 1167-1181 ◽  
Author(s):  
P.A.M. RODRIGUES ◽  
HILDA A. CERDEIRA ◽  
F. CERDEIRA
Keyword(s):  
Crystal Structure ◽  
Quantum Dots ◽  
Raman Spectrum ◽  
Raman Scattering ◽  
Bulk Material ◽  
Semiconductor Quantum Dots ◽  
Polycrystalline Materials ◽  
Nanometer Size ◽  
First Order ◽  
Linear Dimensions

We develop a model appropriate for describing the Raman spectrum of samples, containing a collection of semiconductor quantum dots with and without dispersion in their linear dimensions. These nanometer size crystallites are assumed to have the same atomic arrangement as that of the bulk material and to be embedded in a host material made up of a different semiconductor of the same crystal structure. The results from our calculations are compared to previous models for polycrystalline materials.

First Order Raman Scattering in Bulk Bi2S3 and Quantum Dots: Reconsidering Controversial Interpretations

2014 ◽  
Vol 118 (51) ◽  
pp. 30244-30252 ◽  
Author(s):  
Inti Zumeta-Dubé ◽  
José-Luis Ortiz-Quiñonez ◽  
David Díaz ◽  
Carlos Trallero-Giner ◽  
Víctor-Fabián Ruiz-Ruiz
Keyword(s):  
Quantum Dots ◽  
Raman Scattering ◽  
First Order

Raman Scattering in Superlattices with Ge Quantum Dots

2015 ◽  
Vol 60 (12) ◽  
pp. 1224-1233
Author(s):  
Yu.A. Romanyuk ◽  
◽  
A.M. Yaremko ◽  
V.M. Dzhagan ◽  
V.O. Yukhymchuk ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Raman Scattering ◽  
Ge Quantum Dots

scholarly journals Exciton-Related Raman Scattering, Interband Absorption and Photoluminescence in Colloidal Cdse/Cds Core/Shell Quantum Dots Ensemble

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1274
Author(s):  
Grigor A. Mantashian ◽  
Paytsar A. Mantashyan ◽  
Hayk A. Sarkisyan ◽  
Eduard M. Kazaryan ◽  
Gabriel Bester ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Raman Scattering ◽  
Cross Section ◽  
Core Shell ◽  
Interband Absorption ◽  
Photoluminescence Spectra ◽  
Cds Quantum Dots ◽  
Mass Approximation ◽  
Numerical Discretization ◽  
Size Dispersion

By using the numerical discretization method within the effective-mass approximation, we have theoretically investigated the exciton-related Raman scattering, interband absorption and photoluminescence in colloidal CdSe/CdS core/shell quantum dots ensemble. The interband optical absorption and photoluminescence spectra have been revealed for CdSe/CdS quantum dots, taking into account the size dispersion of the ensemble. Numerical calculation of the differential cross section has been presented for the exciton-related Stokes–Raman scattering in CdSe/CdS quantum dots ensemble with different mean sizes.

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