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
N1 - Funding Information:
We acknowledge financial support from the National Research Foundation (NRF) grant funded by the Korean Government (MEST) (Nos. 2012R1A2A2A01045102 and 2012R1A1A2A10043220).
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
AN - SCOPUS:84872908140
VL - 102
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 3
M1 - 033109
ER -