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 language | English |
|---|---|
| Article number | 033109 |
| Journal | Applied Physics Letters |
| Volume | 102 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2013 Jan 21 |
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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 journal › Article
}
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.
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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 -