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Russian Journal of Physical Chemistry B

, Volume 12, Issue 7, pp 1112–1119 | Cite as

Luminescent Composites Based on Tetrafluoroethylene Copolymer Porous Films Produced by the Diffusion Embedding of Semiconductor Nanoparticles in a Supercritical Medium

  • A. O. RybaltovskiiEmail author
  • V. M. Buznik
  • Yu. S. Zavorotny
  • P. S. Timashev
  • S. N. Churbanov
  • V. N. Bagratashvili
Article
  • 14 Downloads

Abstract

A method for creating film composites based on a new material—a fibrous copolymer of tetrafluoroethylene and vinylidene fluoride—using the diffusion embedding of ready-made nanoparticles into a porous matrix in a supercritical (SC) carbon dioxide medium is developed. The method of cold or hot pressing of impregnated porous films was used at the final stage of creation of such composites. The peculiarities of the effect of the supercritical fluid treatment of porous copolymer films on the surface structure of pressed films are discussed. Luminescent composites with semiconductor nanoparticles of cadmium selenide and nanocrystalline silicon are obtained; their radiation covers a range of 500–1000 nm. The change in the luminescence properties of the resulting nanocomposites under the action of excitation laser radiation at 405 nm is demonstrated.

Keywords

film composite cadmium selenide nanocrystalline silicon diffusion embedding luminescent properties fibrous matrix 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. O. Rybaltovskii
    • 1
    Email author
  • V. M. Buznik
    • 2
  • Yu. S. Zavorotny
    • 1
  • P. S. Timashev
    • 3
    • 4
  • S. N. Churbanov
    • 3
  • V. N. Bagratashvili
    • 3
  1. 1.Skobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia
  2. 2.Baikov Institute of Metallurgy and Materials ScienceRussian Academy of SciencesMoscowRussia
  3. 3.Institute of Photonic Technologies, Federal Research Center “Crystallography and Photonics,”Russian Academy of SciencesMoscowRussia
  4. 4.Institute of Regenerative MedicineSechenov UniversityMoscowRussia

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