Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals
A new type of dipole plasmon excitations in colloidal highly doped ZnO nanocrystals has been studied by means of many-body quantum mechanical approach. We demonstrate that in photodoped ZnO nanocrystals, the conduction band electrons are localized close to the surface and the plasmon oscillations ar...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2018
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| Online Access: | https://hdl.handle.net/10356/89769 http://hdl.handle.net/10220/46359 |
| _version_ | 1826113386150100992 |
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| author | Ipatov, Andrey N. Gerchikov, Leonid G. Guet, Claude |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Ipatov, Andrey N. Gerchikov, Leonid G. Guet, Claude |
| author_sort | Ipatov, Andrey N. |
| collection | NTU |
| description | A new type of dipole plasmon excitations in colloidal highly doped ZnO nanocrystals has been studied by means of many-body quantum mechanical approach. We demonstrate that in photodoped ZnO nanocrystals, the conduction band electrons are localized close to the surface and the plasmon oscillations are induced by their angular motion. The transition of this plasmon mode from classical to quantum regime is defined by the nanocrystal size. The size dependence of the resonance frequency which results from quantum effects is in remarkable agreement with experimental observations. |
| first_indexed | 2024-10-01T03:22:22Z |
| format | Journal Article |
| id | ntu-10356/89769 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:22:22Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/897692021-01-13T07:08:17Z Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals Ipatov, Andrey N. Gerchikov, Leonid G. Guet, Claude School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) Plasmon DRNTU::Engineering::Materials Photoabsorbtion A new type of dipole plasmon excitations in colloidal highly doped ZnO nanocrystals has been studied by means of many-body quantum mechanical approach. We demonstrate that in photodoped ZnO nanocrystals, the conduction band electrons are localized close to the surface and the plasmon oscillations are induced by their angular motion. The transition of this plasmon mode from classical to quantum regime is defined by the nanocrystal size. The size dependence of the resonance frequency which results from quantum effects is in remarkable agreement with experimental observations. Published version 2018-10-18T04:28:01Z 2019-12-06T17:33:04Z 2018-10-18T04:28:01Z 2019-12-06T17:33:04Z 2018 Journal Article Ipatov, A. N., Gerchikov, L. G., & Guet, C. (2018). Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals. Nanoscale Research Letters, 13, 297-. doi:10.1186/s11671-018-2710-3 1931-7573 https://hdl.handle.net/10356/89769 http://hdl.handle.net/10220/46359 10.1186/s11671-018-2710-3 en Nanoscale Research Letters © 2018 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 7 p. application/pdf |
| spellingShingle | Plasmon DRNTU::Engineering::Materials Photoabsorbtion Ipatov, Andrey N. Gerchikov, Leonid G. Guet, Claude Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals |
| title | Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals |
| title_full | Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals |
| title_fullStr | Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals |
| title_full_unstemmed | Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals |
| title_short | Plasmon resonance in photoabsorption of colloidal highly doped ZnO nanocrystals |
| title_sort | plasmon resonance in photoabsorption of colloidal highly doped zno nanocrystals |
| topic | Plasmon DRNTU::Engineering::Materials Photoabsorbtion |
| url | https://hdl.handle.net/10356/89769 http://hdl.handle.net/10220/46359 |
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