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Manifestation of molecular vibrations of polymers in thermoluminescence of nanocomposites.

Manifestation of molecular vibrations of polymers in thermoluminescence of nanocomposites.

Authors :
Ostapenko, N. I.
Ostapenko, Yu. V.
Sugakov, V. I.
Source :
Molecular Crystals & Liquid Crystals. 2024, Vol. 768 Issue 15, p788-798. 11p.
Publication Year :
2024

Abstract

An experimental and theoretical study of the thermoluminescence (TL) of a PDHS/MCM-41 nanocomposite with the introduction of a polymer (poly-di-n-hexylsilane) (PDHS) into MCM nanopores has been carried out in the temperature range 5–150K. TL curve consists of a very narrow intense band and wider less intense band. In the nananocomposite there is a strong shift of the curve toward low temperatures compared to the curve of the film and a significant narrowing of the bands. The calculations used the model of non-adiabatic transitions. Results show a significant role of molecular vibrations in the formation of the TL curve of a nanocomposite. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15421406
Volume :
768
Issue :
15
Database :
Academic Search Index
Journal :
Molecular Crystals & Liquid Crystals
Publication Type :
Academic Journal
Accession number :
179638113
Full Text :
https://doi.org/10.1080/15421406.2024.2361969