Luminescence of nanocomposites obtained via SCF impregnation of polymer powders with CdSe quantum dots
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 photolu...
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Published in | Russian journal of physical chemistry. B Vol. 10; no. 7; pp. 1033 - 1038 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
01.12.2016
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | 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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ISSN: | 1990-7931 1990-7923 |
DOI: | 10.1134/S1990793116070174 |