Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity
Linear and nonlinear optical properties in colloidal CdSe/CdS core/shell quantum dots with different sizes have been theoretically investigated in the framework of effective mass approximation. The electron states in colloidal CdSe/CdS core/shell quantum dots have been calculated using the finite el...
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MDPI AG
2021-10-01
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| author | Grigor A. Mantashian Nare A. Zaqaryan Paytsar A. Mantashyan Hayk A. Sarkisyan Sotirios Baskoutas David B. Hayrapetyan |
| author_facet | Grigor A. Mantashian Nare A. Zaqaryan Paytsar A. Mantashyan Hayk A. Sarkisyan Sotirios Baskoutas David B. Hayrapetyan |
| author_sort | Grigor A. Mantashian |
| collection | DOAJ |
| description | Linear and nonlinear optical properties in colloidal CdSe/CdS core/shell quantum dots with different sizes have been theoretically investigated in the framework of effective mass approximation. The electron states in colloidal CdSe/CdS core/shell quantum dots have been calculated using the finite element method. The intraband linear and nonlinear absorption spectra have been calculated for colloidal CdSe/CdS core/shell quantum dots with different sizes. In addition, the dependences of the linear and nonlinear refractive index change on the incident light energy have been calculated. In the last section of the paper the second- and third-order harmonic generation spectra have been presented. |
| first_indexed | 2024-03-10T04:36:13Z |
| format | Article |
| id | doaj.art-f9e3e0c15515484aa9bd4f0956a28f34 |
| institution | Directory Open Access Journal |
| issn | 2218-2004 |
| language | English |
| last_indexed | 2024-03-10T04:36:13Z |
| publishDate | 2021-10-01 |
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| spelling | doaj.art-f9e3e0c15515484aa9bd4f0956a28f342023-11-23T03:47:48ZengMDPI AGAtoms2218-20042021-10-01947510.3390/atoms9040075Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor ImpurityGrigor A. Mantashian0Nare A. Zaqaryan1Paytsar A. Mantashyan2Hayk A. Sarkisyan3Sotirios Baskoutas4David B. Hayrapetyan5Department of General Physics and Quantum Nanostructures, Russian-Armenian University, Yerevan 0051, ArmeniaDepartment of General Physics and Quantum Nanostructures, Russian-Armenian University, Yerevan 0051, ArmeniaDepartment of General Physics and Quantum Nanostructures, Russian-Armenian University, Yerevan 0051, ArmeniaDepartment of General Physics and Quantum Nanostructures, Russian-Armenian University, Yerevan 0051, ArmeniaDepartment of Materials Science, University of Patras, GR-26504 Patras, GreeceDepartment of General Physics and Quantum Nanostructures, Russian-Armenian University, Yerevan 0051, ArmeniaLinear and nonlinear optical properties in colloidal CdSe/CdS core/shell quantum dots with different sizes have been theoretically investigated in the framework of effective mass approximation. The electron states in colloidal CdSe/CdS core/shell quantum dots have been calculated using the finite element method. The intraband linear and nonlinear absorption spectra have been calculated for colloidal CdSe/CdS core/shell quantum dots with different sizes. In addition, the dependences of the linear and nonlinear refractive index change on the incident light energy have been calculated. In the last section of the paper the second- and third-order harmonic generation spectra have been presented.https://www.mdpi.com/2218-2004/9/4/75CdSe/CdS core/shell quantum dotlinear and nonlinear absorptionintraband absorptionrefractive index changesecond- and third-order harmonic generation |
| spellingShingle | Grigor A. Mantashian Nare A. Zaqaryan Paytsar A. Mantashyan Hayk A. Sarkisyan Sotirios Baskoutas David B. Hayrapetyan Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity Atoms CdSe/CdS core/shell quantum dot linear and nonlinear absorption intraband absorption refractive index change second- and third-order harmonic generation |
| title | Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity |
| title_full | Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity |
| title_fullStr | Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity |
| title_full_unstemmed | Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity |
| title_short | Linear and Nonlinear Optical Absorption of CdSe/CdS Core/Shell Quantum Dots in the Presence of Donor Impurity |
| title_sort | linear and nonlinear optical absorption of cdse cds core shell quantum dots in the presence of donor impurity |
| topic | CdSe/CdS core/shell quantum dot linear and nonlinear absorption intraband absorption refractive index change second- and third-order harmonic generation |
| url | https://www.mdpi.com/2218-2004/9/4/75 |
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