Izvestiya of Saratov University.


ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

For citation:

Gorbachev I. A., Chumakov A. S., Ermakov A. V., Kim V. P., Speranskaya E. S., Goryacheva I. Y., Glukhovskoy E. G. Investigation of Multilayers Structures Based on the Langmuir–Blodgett Films of CdSe/ZnS Quantum Dots. Izvestiya of Sarat. Univ. Physics. , 2013, vol. 13, iss. 2, pp. 54-57. DOI: 10.18500/1817-3020-2013-13-2-54-57

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Full text:
(downloads: 130)
535.8: 537.9 544-0.22.532(075.8)

Investigation of Multilayers Structures Based on the Langmuir–Blodgett Films of CdSe/ZnS Quantum Dots

Gorbachev Ilya Andreevich, Saratov State University
Chumakov Alexey Sergeevich, Saratov State University
Ermakov Alexey Vadimovich, Saratov State University
Kim Vitaly Pavlovich, Moscow State University. M.V. Lomonosov
Speranskaya Elena Sergeevna, Saratov State University
Goryacheva Irina Yurievna, Saratov State University
Glukhovskoy Evgeny Gennadievich, Saratov State University

This article presents the results of a study QD Langmuir monolayers on the water subphase and LB films transferred onto a solid surface. The monolayers of CdSe/CdS/ZnS QD stabilized by oleic acid without of supplements of amphiphilic matrix, was created. The monolayers was transfered on the solid substrate, what was proved by the AFM and the fluorescence spectroscopy methods. The fluorescence spectra of the LB films with variable numbers of layers was captured. Also the spectrum of fluorescence before and after the laser irradiation with the wavelength 473 nm and optical power 6 mW was captured. The decreasing of the fluorescence intensity after 12 minutes of impact by 30% was obtained.

  1. Qingjiang Sun, Andrew Wang, Lin Song Li, Daoyuan Wang. Bright, multicoloured light-emitting diodes based on quantum dots // Nature photonics. 2007. Vol. 1, № 12. P. 717–722.
  2. Сперанская Е. С., Гофтман В. В., Дмитриенко А. О., Дмитриенко В. П., Акмаева Т. А., Горячева И. Ю. Синтез гидрофобных и гидрофильных квантовых точек ядро – оболочка // Изв. Сарат. ун-та. Нов. сер. Сер. Химия. Биология. Экология. 2012. Т. 12, вып. 4. С. 3–10.
  3. Ji X., Wang C., Xu J. Surface chemistry studies of (CdSe) ZnS quantum dots at the air-water interface // Langmuir. 2005. Vol. 21, № 12. P. 5377–5382.
  4. Gole A., Jana N. R., Selvan S. T. Langmuir–Blodgett thin fi lms of quantum dots : synthesis, surface modification and fluorescence resonance energy transfer (FRET) studies // Langmuir. 2008. Vol. 24, № 15. P. 8181–8186.
  5. Ferreira Pedro M. S, Timmons A. B., Neves M. C., Langmuir–Blodgett manipulation of capped cadmium sulfi de quantum dots // Thin Solid Films. 2001. Vol. 389, № 1–2. P. 272–277.
  6. Dhananjay B., Chantal K.-M. Direct patterning of quantum dots on structured PDMS surface // Sensors and Actuators B : Chemica. 2007. Vol. 128, № 1. P. 168–172.
  7. Li-Wei S., Han-Qiao Shi, Wan-Nan Li, Hong-Mei Xiao. Lanthanum-doped ZnO quantum dots with greatly enhanced fl uorescent quantum yield // J. Mater. Chem. 2012. Iss. 17. P. 8221–8227.
  8. Горбачев И. А., Глуховской Е. Г. Исследование систем органическая матрица – металлические наночастицы. Germany, Saarbrücken : Изд. дом LAP LAMBERT Academic Publishing, 2012. 64 с.
  9. Адамсон А. Физическая химия поверхностей / под ред. З. М. Зорина, В. М. Муллера. М. : Мир, 1979. 568 с.