Resonant Raman scattering from CdS nanocrystals enhanced by interstitial Mn

P. Q. Zhao; L. Z. Liu; H. T. Xue; X. L. Wu; J. C. Shen; Paul K. Chu

doi:10.1063/1.4792512

Resonant Raman scattering from CdS nanocrystals enhanced by interstitial Mn

P. Q. Zhao
, L. Z. Liu
, H. T. Xue
, X. L. Wu
, J. C. Shen
, Paul K. Chu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

25 Citations (Scopus)

35 Downloads (CityUHK Scholars)

Abstract

Different Raman scattering effects are observed from CdS and Mn-doped CdS nanocrystals (NCs) with an average size of 5.1 nm synthesized by the reverse-micelle method. The intensity of the longitudinal optical (LO) phonon spectrum acquired from the Mn-doped CdS NCs is more than 20 times larger than that from the undoped CdS NCs. Spectroscopic and theoretical analyses reveal that the enhancement is caused by the interstitial Mn dopants, which decrease the NC surface deformation potential due to the small dielectric constant of the metal resulting in enhanced coupling between the LO phonon and surface plasmon. © 2013 American Institute of Physics.

Original language	English
Article number	61910
Journal	Applied Physics Letters
Volume	102
Issue number	6
DOIs	https://doi.org/10.1063/1.4792512
Publication status	Published - 11 Feb 2013

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in P. Q. Zhao, L. Z. Liu, H. T. Xue, X. L. Wu, J. C. Shen, and Paul K. Chu , "Resonant Raman scattering from CdS nanocrystals enhanced by interstitial Mn", Appl. Phys. Lett. 102, 061910 (2013) and may be found at https://doi.org/10.1063/1.4792512.

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title = "Resonant Raman scattering from CdS nanocrystals enhanced by interstitial Mn",

abstract = "Different Raman scattering effects are observed from CdS and Mn-doped CdS nanocrystals (NCs) with an average size of 5.1 nm synthesized by the reverse-micelle method. The intensity of the longitudinal optical (LO) phonon spectrum acquired from the Mn-doped CdS NCs is more than 20 times larger than that from the undoped CdS NCs. Spectroscopic and theoretical analyses reveal that the enhancement is caused by the interstitial Mn dopants, which decrease the NC surface deformation potential due to the small dielectric constant of the metal resulting in enhanced coupling between the LO phonon and surface plasmon. {\textcopyright} 2013 American Institute of Physics.",

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day = "11",

doi = "10.1063/1.4792512",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

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TY - JOUR

T1 - Resonant Raman scattering from CdS nanocrystals enhanced by interstitial Mn

AU - Zhao, P. Q.

AU - Liu, L. Z.

AU - Xue, H. T.

AU - Wu, X. L.

AU - Shen, J. C.

AU - Chu, Paul K.

PY - 2013/2/11

Y1 - 2013/2/11

N2 - Different Raman scattering effects are observed from CdS and Mn-doped CdS nanocrystals (NCs) with an average size of 5.1 nm synthesized by the reverse-micelle method. The intensity of the longitudinal optical (LO) phonon spectrum acquired from the Mn-doped CdS NCs is more than 20 times larger than that from the undoped CdS NCs. Spectroscopic and theoretical analyses reveal that the enhancement is caused by the interstitial Mn dopants, which decrease the NC surface deformation potential due to the small dielectric constant of the metal resulting in enhanced coupling between the LO phonon and surface plasmon. © 2013 American Institute of Physics.

AB - Different Raman scattering effects are observed from CdS and Mn-doped CdS nanocrystals (NCs) with an average size of 5.1 nm synthesized by the reverse-micelle method. The intensity of the longitudinal optical (LO) phonon spectrum acquired from the Mn-doped CdS NCs is more than 20 times larger than that from the undoped CdS NCs. Spectroscopic and theoretical analyses reveal that the enhancement is caused by the interstitial Mn dopants, which decrease the NC surface deformation potential due to the small dielectric constant of the metal resulting in enhanced coupling between the LO phonon and surface plasmon. © 2013 American Institute of Physics.

UR - https://www.scopus.com/pages/publications/84874266873

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84874266873&origin=recordpage

U2 - 10.1063/1.4792512

DO - 10.1063/1.4792512

M3 - RGC 21 - Publication in refereed journal

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 61910

ER -

Resonant Raman scattering from CdS nanocrystals enhanced by interstitial Mn

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