|
Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2008, Volume 88, Issue 12, Pages 918–921
(Mi jetpl319)
|
|
|
|
This article is cited in 38 scientific papers (total in 38 papers)
CONDENSED MATTER
Surface enhanced Raman scattering by CdS quantum dots
A. G. Milekhina, L. L. Sveshnikovaa, T. A. Dudaa, N. V. Surovtsevb, S. V. Adichtchevb, D. R. T. Zahnc a Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk, 630090, Russia
b Institute of Automatics and Electrometry, Siberian Branch, Russian Academy of Sciences, Universitetskii pr. 1, Novosibirsk, 630090, Russia
c Institut für Physik, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
Abstract:
Surface enhanced Raman scattering is studied in nanostructures with CdS quantum dots formed using the Langmuir-Blodgett technology. Features due to quantum dot longitudinal optical phonons are observed in the Raman spectra of both free CdS quantum dots and such dots distributed in an organic matrix. The surface enhanced Raman scattering by nanostructures with CdS quantum dots covered by an Ag cluster film is observed experimentally. Applying Ag clusters onto the nanostructure surfaces results in a sharp (40-fold) increase in the intensity of Raman scattering by optical phonons in the quantum dots. It is shown that the dependence of surface enhanced Raman scattering on the excitation energy is resonant with a maximum at the energy corresponding to the maximum absorption coefficient of Ag clusters.
Received: 30.07.2008 Revised: 11.09.2008
Citation:
A. G. Milekhin, L. L. Sveshnikova, T. A. Duda, N. V. Surovtsev, S. V. Adichtchev, D. R. T. Zahn, “Surface enhanced Raman scattering by CdS quantum dots”, Pis'ma v Zh. Èksper. Teoret. Fiz., 88:12 (2008), 918–921; JETP Letters, 88:12 (2008), 799–801
Linking options:
https://www.mathnet.ru/eng/jetpl319 https://www.mathnet.ru/eng/jetpl/v88/i12/p918
|
Statistics & downloads: |
Abstract page: | 641 | Full-text PDF : | 423 | References: | 47 |
|