TY  - JOUR
AU  - Klyachkovskaya, E.
AU  - Strekal, N.
AU  - Motevich, I.
AU  - Vaschenko, S.
AU  - Harbachova, A.
AU  - Belkov, M.
AU  - Gaponenko, S.
AU  - Dais, C.
AU  - Sigg, H.
AU  - Stoica, T.
AU  - Grützmacher, D.
TI  - Enhanced Raman Scattering of Ultramarine on Au-coated Ge/Si-nanostructures
JO  - Plasmonics
VL  - 6
SN  - 1557-1955
CY  - New York, NY [u.a.]
PB  - Springer
M1  - PreJuSER-14604
SP  - 413 - 418
PY  - 2011
N1  - Helpful discussions with K. Kneipp and D. Guzatov are greatly acknowledged. The work has been supported Belarusian National Program "Crystalline and Molecular Structures" and Swiss Program "SCOPE".
AB  - Semiconductor self-assembled Ge-on-Si quantum dot structures coated with Au film were successfully employed as surface-enhanced Raman scattering (SERS) substrates to characterize ultramarine blue inorganic art pigment. To assign the bands and to reveal the enhancement mechanisms, the quantum-chemical calculations of vibration spectra of linear and cyclic model compound of SiO4 and AlO4 tetrahedra were carried out. The overtones are observed in the SERS spectra and the unharmonicity constants were estimated. The development of a series of new bands in SERS spectra of ultramarine are discussed in terms of electro-optical unharmonicity.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000290578600033
DO  - DOI:10.1007/s11468-011-9219-2
UR  - https://juser.fz-juelich.de/record/14604
ER  -