Resonant raman scattering in complexes of nc-Si/SiO2 quantum dots and oligonucleotides
| Autor: | F. B. Bairamov, V. V. Toporov, Christoph Sprung, C. Röder, B. Kh. Bairamov, M. V. Dubina, Harri Lipsanen, A. A. Kornev, E. D. Poloskin, A. L. Chernev |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) business.industry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Molecular physics Nanocrystalline material Light scattering Photoexcitation Condensed Matter::Materials Science symbols.namesake Quantum dot symbols Optoelectronics Molecule NC-SI business Raman spectroscopy Raman scattering |
| Zdroj: | Technical Physics Letters |
| ISSN: | 1090-6533 1063-7850 |
| DOI: | 10.1134/s1063785014110182 |
| Popis: | We report on the functionalization of nanocrystalline nc-Si/SiO2 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/SiO2 quantum dots to d(20G, 20T) oligonucleotide molecules have been revealed. |
| Databáze: | OpenAIRE |
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