Obtaining of hydroxylated fullerenes Y@C82OX(OH)Y, Y2@C82OX(OH)Y, Y2C2@C82OX(OH)Y and electrophysical characteristic of composite film based thereon
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URI (для ссылок/цитирований):
https://www.tandfonline.com/doi/full/10.1080/1536383X.2018.1501559https://elib.sfu-kras.ru/handle/2311/128561
Автор:
Grigory N. Churilov
Alexander I. Dudnik
Nikolay A. Drokin
Natalia G. Vnukova
Evgeniy V. Tomashevich
Vitaliy S. Bondarev
Коллективный автор:
Институт инженерной физики и радиоэлектроники
Базовая кафедра физики твердого тела и нанотехнологий
Дата:
2018Журнал:
Fullerenes, nanotubes and carbon nanostructuresКвартиль журнала в Scopus:
Q2Квартиль журнала в Web of Science:
Q3Библиографическое описание:
Grigory N. Churilov. Obtaining of hydroxylated fullerenes Y@C82OX(OH)Y, Y2@C82OX(OH)Y, Y2C2@C82OX(OH)Y and electrophysical characteristic of composite film based thereon [Текст] / Grigory N. Churilov, Alexander I. Dudnik, Nikolay A. Drokin, Natalia G. Vnukova, Evgeniy V. Tomashevich, Vitaliy S. Bondarev // Fullerenes, nanotubes and carbon nanostructures. — 2018. — Т. 26 (№ 12). — С. 799-803Аннотация:
The article presents, for the first time, the results of the research on composite film obtained from
hydroxylated endohedral metallofullerenes (EMF) Y@C82, Y2@C82, with Y2C2@C82 and highest fullerenes
as dopant. The composite film has been established to have electric conductivity and to be
a ferroelectric with the value of residual polarization of ~0.75 mkC/cm2. The impedance spectroscopy
of this sample allowed us to determine dispersion of dielectric permittivity and conductivity
in the range of frequencies of 0.5Hz–100MHz. It is stated that the value of the high-frequency
dielectric permittivity of films is e' = 2.8. However, with reduction in the electric field frequency,
real and imaginary parts of e increase to values ~10^4–10^5. Such increase in dielectric permittivity
is connected with increase in polarizing caused by accumulation of mobile electric charges (electrons
of ions, protons) on boundaries of the structural defects of a film, which are divided by thin
dielectric interlayers. The film is solid electrolyte with the ionic conductivity of ~5*10^(-7) S/cm.