Surface enhanced Raman scattering effect of CdSe/ZnS quantum dots hybridized with Au nanowire

Yong Baek Lee, Seok Ho Lee, Sunmi Lee, Hyunsoo Lee, Jeongyong Kim, Jinsoo Joo

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Functionalized CdSe/ZnS quantum dots (QDs) were attached to the surface of Au nanowire (NW). Analysis of optical absorption spectra disclosed surface plasmon bands of Au NWs at 562 and 627 nm and showing an overlap with the QD absorption band. Micro Raman spectra (λex = 514 nm) of the QDs/Au single NW exhibited surface enhanced Raman scattering (SERS) peaks at 180, 205, and 277 cm-1, corresponding to surface, longitudinal, and transverse optical phonon modes, respectively. From time-resolved fluorescence spectra, the exciton lifetime of QDs decreased after hybridization with Au NW due to the energy transfer, supporting the SERS effect.

Original languageEnglish
Article number033109
JournalApplied Physics Letters
Volume102
Issue number3
DOIs
Publication statusPublished - 2013 Jan 21

Fingerprint

nanowires
quantum dots
Raman spectra
absorption spectra
optical spectrum
optical absorption
energy transfer
excitons
life (durability)
fluorescence

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Surface enhanced Raman scattering effect of CdSe/ZnS quantum dots hybridized with Au nanowire. / Lee, Yong Baek; Ho Lee, Seok; Lee, Sunmi; Lee, Hyunsoo; Kim, Jeongyong; Joo, Jinsoo.

In: Applied Physics Letters, Vol. 102, No. 3, 033109, 21.01.2013.

Research output: Contribution to journalArticle

Lee, Yong Baek ; Ho Lee, Seok ; Lee, Sunmi ; Lee, Hyunsoo ; Kim, Jeongyong ; Joo, Jinsoo. / Surface enhanced Raman scattering effect of CdSe/ZnS quantum dots hybridized with Au nanowire. In: Applied Physics Letters. 2013 ; Vol. 102, No. 3.
@article{91fd944eb2c245eea02fb03e36aeb1c5,
title = "Surface enhanced Raman scattering effect of CdSe/ZnS quantum dots hybridized with Au nanowire",
abstract = "Functionalized CdSe/ZnS quantum dots (QDs) were attached to the surface of Au nanowire (NW). Analysis of optical absorption spectra disclosed surface plasmon bands of Au NWs at 562 and 627 nm and showing an overlap with the QD absorption band. Micro Raman spectra (λex = 514 nm) of the QDs/Au single NW exhibited surface enhanced Raman scattering (SERS) peaks at 180, 205, and 277 cm-1, corresponding to surface, longitudinal, and transverse optical phonon modes, respectively. From time-resolved fluorescence spectra, the exciton lifetime of QDs decreased after hybridization with Au NW due to the energy transfer, supporting the SERS effect.",
author = "Lee, {Yong Baek} and {Ho Lee}, Seok and Sunmi Lee and Hyunsoo Lee and Jeongyong Kim and Jinsoo Joo",
year = "2013",
month = "1",
day = "21",
doi = "10.1063/1.4788926",
language = "English",
volume = "102",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "3",

}

TY - JOUR

T1 - Surface enhanced Raman scattering effect of CdSe/ZnS quantum dots hybridized with Au nanowire

AU - Lee, Yong Baek

AU - Ho Lee, Seok

AU - Lee, Sunmi

AU - Lee, Hyunsoo

AU - Kim, Jeongyong

AU - Joo, Jinsoo

PY - 2013/1/21

Y1 - 2013/1/21

N2 - Functionalized CdSe/ZnS quantum dots (QDs) were attached to the surface of Au nanowire (NW). Analysis of optical absorption spectra disclosed surface plasmon bands of Au NWs at 562 and 627 nm and showing an overlap with the QD absorption band. Micro Raman spectra (λex = 514 nm) of the QDs/Au single NW exhibited surface enhanced Raman scattering (SERS) peaks at 180, 205, and 277 cm-1, corresponding to surface, longitudinal, and transverse optical phonon modes, respectively. From time-resolved fluorescence spectra, the exciton lifetime of QDs decreased after hybridization with Au NW due to the energy transfer, supporting the SERS effect.

AB - Functionalized CdSe/ZnS quantum dots (QDs) were attached to the surface of Au nanowire (NW). Analysis of optical absorption spectra disclosed surface plasmon bands of Au NWs at 562 and 627 nm and showing an overlap with the QD absorption band. Micro Raman spectra (λex = 514 nm) of the QDs/Au single NW exhibited surface enhanced Raman scattering (SERS) peaks at 180, 205, and 277 cm-1, corresponding to surface, longitudinal, and transverse optical phonon modes, respectively. From time-resolved fluorescence spectra, the exciton lifetime of QDs decreased after hybridization with Au NW due to the energy transfer, supporting the SERS effect.

UR - http://www.scopus.com/inward/record.url?scp=84872908140&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872908140&partnerID=8YFLogxK

U2 - 10.1063/1.4788926

DO - 10.1063/1.4788926

M3 - Article

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 3

M1 - 033109

ER -