Abstract
This work demonstrates the development of near-infrared surface-enhanced Raman spectroscopy (NIR-SERS) for the identification of eosin Y, an important historical dye. NIR-SERS benefits from the absence of some common sources of SERS signal loss including photobleaching and plasmonic heating, as well as an advantageous reduction in fluorescence, which is beneficial for art applications. This work also represents the first rigorous comparison of the enhancement factors and the relative merits of two plasmonic substrates utilized in art applications; namely, citrate-reduced silver colloids and metal film over nanosphere (FON) substrates. Experimental spectra are correlated in detail with theoretical absorption and Raman spectra calculated using time-dependent density functional theory (TDDFT) in order to elucidate molecular structural information and avoid relying on pigment spectral libraries for dye identification.
| Original language | English |
|---|---|
| Pages (from-to) | 11863-11869 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry A |
| Volume | 116 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - Dec 6 2012 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Near-infrared surface-enhanced raman spectroscopy (NIR-SERS) for the identification of eosin Y : Theoretical calculations and evaluation of two different nanoplasmonic substrates. / Greeneltch, Nathan G.; Davis, Amber S.; Valley, Nicholas A.; Casadio, Francesca; Schatz, George C; Van Duyne, Richard P.; Shah, Nilam C.
In: Journal of Physical Chemistry A, Vol. 116, No. 48, 06.12.2012, p. 11863-11869.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Near-infrared surface-enhanced raman spectroscopy (NIR-SERS) for the identification of eosin Y
T2 - Theoretical calculations and evaluation of two different nanoplasmonic substrates
AU - Greeneltch, Nathan G.
AU - Davis, Amber S.
AU - Valley, Nicholas A.
AU - Casadio, Francesca
AU - Schatz, George C
AU - Van Duyne, Richard P.
AU - Shah, Nilam C.
PY - 2012/12/6
Y1 - 2012/12/6
N2 - This work demonstrates the development of near-infrared surface-enhanced Raman spectroscopy (NIR-SERS) for the identification of eosin Y, an important historical dye. NIR-SERS benefits from the absence of some common sources of SERS signal loss including photobleaching and plasmonic heating, as well as an advantageous reduction in fluorescence, which is beneficial for art applications. This work also represents the first rigorous comparison of the enhancement factors and the relative merits of two plasmonic substrates utilized in art applications; namely, citrate-reduced silver colloids and metal film over nanosphere (FON) substrates. Experimental spectra are correlated in detail with theoretical absorption and Raman spectra calculated using time-dependent density functional theory (TDDFT) in order to elucidate molecular structural information and avoid relying on pigment spectral libraries for dye identification.
AB - This work demonstrates the development of near-infrared surface-enhanced Raman spectroscopy (NIR-SERS) for the identification of eosin Y, an important historical dye. NIR-SERS benefits from the absence of some common sources of SERS signal loss including photobleaching and plasmonic heating, as well as an advantageous reduction in fluorescence, which is beneficial for art applications. This work also represents the first rigorous comparison of the enhancement factors and the relative merits of two plasmonic substrates utilized in art applications; namely, citrate-reduced silver colloids and metal film over nanosphere (FON) substrates. Experimental spectra are correlated in detail with theoretical absorption and Raman spectra calculated using time-dependent density functional theory (TDDFT) in order to elucidate molecular structural information and avoid relying on pigment spectral libraries for dye identification.
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UR - http://www.scopus.com/inward/citedby.url?scp=84870823908&partnerID=8YFLogxK
U2 - 10.1021/jp3081035
DO - 10.1021/jp3081035
M3 - Article
VL - 116
SP - 11863
EP - 11869
JO - Journal of Physical Chemistry A
JF - Journal of Physical Chemistry A
SN - 1089-5639
IS - 48
ER -