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Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots.

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Title: Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots.
Authors: Huang, Wen Deng1, Bao, Li Fu1, Ren, Ya Jie1, Yuan, Zhao Lin1
Source: Superlattices & Microstructures. Apr2018, Vol. 116, p36-43. 8p.
Subjects: Electron-phonon interactions, Phonon spectra, Spherical shells (Engineering), Optical properties of quantum dots, Zinc sulfide, Cadmium sulfide
Abstract: The properties of interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots are studied by adopting dielectric continuum model. The dispersion curves and electron-phonon coupling strengths for interface optical phonons in ZnS/CdS multi-shell dots are calculated and analyzed in detail. It is shown that the number of interface optical phonon branches increase with the increase of layers of multi-shell quantum dots. The number of interface optical phonons increase two branches for increasing one layer material. The dispersions of interface optical phonon with low quantum number l are weak. The electron-interface optical phonon interactions are mainly localized at hetero-interfaces. The interface optical phonons with low quantum number l have important contribution to electron-interface optical phonon interactions. [ABSTRACT FROM AUTHOR]
Copyright of Superlattices & Microstructures is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 128542536
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  Data: Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots.
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  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Wen+Deng%22">Huang, Wen Deng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bao%2C+Li+Fu%22">Bao, Li Fu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ren%2C+Ya+Jie%22">Ren, Ya Jie</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yuan%2C+Zhao+Lin%22">Yuan, Zhao Lin</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Superlattices+%26+Microstructures%22">Superlattices & Microstructures</searchLink>. Apr2018, Vol. 116, p36-43. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Electron-phonon+interactions%22">Electron-phonon interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Phonon+spectra%22">Phonon spectra</searchLink><br /><searchLink fieldCode="DE" term="%22Spherical+shells+%28Engineering%29%22">Spherical shells (Engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+properties+of+quantum+dots%22">Optical properties of quantum dots</searchLink><br /><searchLink fieldCode="DE" term="%22Zinc+sulfide%22">Zinc sulfide</searchLink><br /><searchLink fieldCode="DE" term="%22Cadmium+sulfide%22">Cadmium sulfide</searchLink>
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  Data: The properties of interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots are studied by adopting dielectric continuum model. The dispersion curves and electron-phonon coupling strengths for interface optical phonons in ZnS/CdS multi-shell dots are calculated and analyzed in detail. It is shown that the number of interface optical phonon branches increase with the increase of layers of multi-shell quantum dots. The number of interface optical phonons increase two branches for increasing one layer material. The dispersions of interface optical phonon with low quantum number l are weak. The electron-interface optical phonon interactions are mainly localized at hetero-interfaces. The interface optical phonons with low quantum number l have important contribution to electron-interface optical phonon interactions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Superlattices & Microstructures is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.spmi.2018.02.015
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 36
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      – SubjectFull: Electron-phonon interactions
        Type: general
      – SubjectFull: Phonon spectra
        Type: general
      – SubjectFull: Spherical shells (Engineering)
        Type: general
      – SubjectFull: Optical properties of quantum dots
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      – SubjectFull: Zinc sulfide
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      – SubjectFull: Cadmium sulfide
        Type: general
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      – TitleFull: Interface optical phonons and their electron-phonon interactions in ZnS/CdS multi-shell spherical quantum dots.
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            NameFull: Bao, Li Fu
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              Text: Apr2018
              Type: published
              Y: 2018
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