F. B. Bairamov, E. D. Poloskin, A. A. Kornev, A. L. Chernev, V. V. Toporov, M. V. Dubina, C. Röder, C. Sprung, H. Lipsanen, B. H. Bairamov, “Resonant raman scattering in complexes of $nc$-Si/SiO$_2$ quantum dots and oligonucleotides”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2014, Volume 40, Issue 22,Pages 105

Resonant raman scattering in complexes of $nc$-Si/SiO$_2$ quantum dots and oligonucleotides

F. B. Bairamov^ab, E. D. Poloskin^b, A. A. Kornev^a, A. L. Chernev^a, V. V. Toporov^b, M. V. Dubina^a, C. Röder^c, C. Sprung^d, H. Lipsanen^e, B. H. Bairamov^be

^a St. Petersburg Academic University — Nanotechnology Research and Education Centre of the Russian Academy of Sciences (the Academic University)
^b Ioffe Institute, St. Petersburg
^c Institute of Theoretical Physics, University of Mining and Technology, D-09596 Freiberg, Germany
^d Fritz Haber Institute, Max Planck Society, Department of Inorganic Chemistry, 14195 Berlin, Germany
^e Aalto University, Department of Micro- and Nanosciencies, Micronova, P.O.Box 13500, FI-00076, Aalto, Finland

Abstract: We report on the functionalization of nanocrystalline $nc$-Si/SiO$_2$ semiconductor quantum dots (QDs) by short d(20G, 20T) oligonucleotides. The obtained complexes have been studied by Raman spectroscopy techniques with high spectral and spatial resolution. A new phenomenon of multiband resonant light scattering on single oligonucleotide molecules has been discovered, and peculiarities of this effect related to the nonradiative transfer of photoexcitation from $nc$-Si/SiO$_2$ quantum dots to d(20G, 20T) oligonucleotide molecules have been revealed.

Received: 28.05.2014