Exciton-Related Raman Scattering, Interband Absorption and Photoluminescence in Colloidal CdSe/CdS Core/Shell Quantum Dots Ensemble

被引：10
作者：
Mantashian, Grigor A. [1 ]
Mantashyan, Paytsar A. [1 ,2 ]
Sarkisyan, Hayk A. [1 ]
Kazaryan, Eduard M. [1 ]
Bester, Gabriel [3 ]
Baskoutas, Sotirios [3 ,4 ]
Hayrapetyan, David B. [1 ]
机构：
[1] Russian Armenian Univ, Inst Engn & Phys, Yerevan 0051, Armenia
[2] NAS RA, Inst Phys Res, Ashtarak 0203, Armenia
[3] Univ Hamburg, Inst Phys Chem, Grindelallee 117, D-20146 Hamburg, Germany
[4] Univ Patras, Dept Mat Sci, GR-26504 Patras, Greece
来源：
NANOMATERIALS | 2021年 / 11卷 / 05期
关键词：
raman scattering; exciton; interband absorption; luminescence; CdSe/CdS; core/shell quantum dot; OPTICAL-PROPERTIES; SHELL-THICKNESS; CORE; IMPURITY; NANOCRYSTALS; ZNO; SPECTROSCOPY; LIFETIME;
D O I：
10.3390/nano11051274
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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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页数：10
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