RUS  ENG
Полная версия
ЖУРНАЛЫ // Наносистемы: физика, химия, математика // Архив

Наносистемы: физика, химия, математика, 2018, том 9, выпуск 1, страницы 14–16 (Mi nano112)

FROM GUEST EDITORIAL

Thermal-lens spectrometer for studying thermophysical properties of fullerenes

I. V. Mikheevab, L. O. Usoltsevaab, D. A. Ivshukova, D. S. Volkovab, M. V. Korobova, M. A. Proskurninab

a Chemistry Department, Lomonosov Moscow State University, Moscow, Russia
b Analytical Centre of Lomonosov Moscow State University / Agilent Technologies Authorized Partner Laboratory, Moscow, Russia

Аннотация: A thermal-lens spectrometer implementing back-synchronized detection technique with a mode-mismatched optical scheme was constructed. Steady-state and transient signals of thermal-lens spectrometry are used to characterize concentration parameters of aqueous fullerene dispersions (AFDs) at the level of 10$^{-7}$ – 10$^{-5}$ M and to assess thermophysical properties of AFDs. The detection limits of fullerenes in AFDs are 100 nM for C$_{60}$, 80 nM for C$_{70}$ and C$_{78}$ – C$_{88}$, and 60 nM for Y@C$_{82}$, which are 20-fold lower than for spectrophotometry. Suitable precision of measurements of thermal diffusivity and thermal effusivity for AFDs is shown.

Ключевые слова: thermal-lens spectrometry, pristine fullerenes, aqueous fullerene dispersions, thermal diffusivity.

Поступила в редакцию: 21.06.2017
Исправленный вариант: 10.09.2017

Язык публикации: английский

DOI: 10.17586/2220-8054-2018-9-1-14-16



Реферативные базы данных:


© МИАН, 2024