Open AccessЭлектрон-фононное взаимодействие в композитах с колллоидными квантовыми точками: исследование методами люминесцентной спектроскопии и комбинационного рассеяния света
Author(s) -
К.Р. Каримуллин,
А.И. Аржанов,
Н.В. Суровцев,
А.В. Наумов
Publication year - 2022
Publication title -
optika i spektroskopiâ
Language(s) - English
Resource type - Journals
eISSN - 2782-6694
pISSN - 0030-4034
DOI - 10.21883/os.2022.01.51902.42-21
Subject(s) - raman spectroscopy , materials science , colloid , toluene , phonon , quantum dot , substrate (aquarium) , polymer , luminescence , spectroscopy , analytical chemistry (journal) , chemistry , nanotechnology , condensed matter physics , optics , optoelectronics , composite material , physics , organic chemistry , oceanography , quantum mechanics , geology
The temperature-dependent luminescence spectra were analyzed to determine the parameters of the electron-phonon interaction (Huang-Rhys factor and the average phonon energy) for nanocomposites with colloidal CdSe/CdS/ZnS quantum dots (deposited on the surface of a glass substrate and embedded in a thin polymer film of polyisobutylene, and in a frozen colloidal solution in toluene). The measured values of the parameters are analyzed in comparison with model calculations and data obtained using the low-frequency Raman spectroscopy. It is found that in the case of a vitrified colloidal solution of quantum dots in toluene, the matrix effect leads to a noticeable change in the parameters of the electron-phonon interaction.