Luminescence of nanocomposites obtained via SCF ipmpregnation of polymer powders with CdSe quantum dotsстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 7 декабря 2017 г.
Аннотация: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.