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Luminescence of nanocomposites obtained via SCF impregnation of polymer powders with CdSe quantum dots

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Abstract

The luminescence features have been studied in ultradisperse CdSe quantum dot-based composites embedded in low-density polyethylene (LDPE) and polytetrafluoroethylene (PTFE) powders using supercritical carbon dioxide. The thermal treatment of the LDPE sample in air is shown to cause the CdSe photoluminescence band shift toward the shorter wavelengths, whereas for PTFE it shifts to the longer wavelengths with a decrease in its integrated intensity. In both cases, the photoluminescence band behavior under near-UV radiation is determined by the photooxidation processes on the CdSe nuclei.

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Authors and Affiliations

  1. Research Institute of Nuclear Physics, Moscow State University, Moscow, Russia

    A. O. Rybaltovskii, Yu. S. Zavorotnyi & D. S. Rubashnaya

  2. Institute of Laser and Information Technologies, Russian Academy of Sciences, Moscow, Russia

    N. V. Minaev, V. K. Popov & P. S. Timashev

Authors
  1. A. O. Rybaltovskii
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  2. Yu. S. Zavorotnyi
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  3. N. V. Minaev
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  4. V. K. Popov
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  5. D. S. Rubashnaya
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  6. P. S. Timashev
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Corresponding author

Correspondence to A. O. Rybaltovskii.

Additional information

Original Russian Text © A.O. Rybaltovskii, Yu.S. Zavorotnyi, N.V. Minaev, V.K. Popov, D.S. Rubashnaya, P.S. Timashev, 2015, published in Sverkhkriticheskie Flyuidy. Teoriya i Praktika, 2015, Vol. 10, No. 1, pp. 9–18.

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Rybaltovskii, A.O., Zavorotnyi, Y.S., Minaev, N.V. et al. Luminescence of nanocomposites obtained via SCF impregnation of polymer powders with CdSe quantum dots. Russ. J. Phys. Chem. B 10, 1033–1038 (2016). https://doi.org/10.1134/S1990793116070174

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  • DOI: https://doi.org/10.1134/S1990793116070174

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