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IPEC-8 2021 1 2021




АКАДЕМИЯ НАУК РЕСПУБЛИКИ УЗБЕКИСТАН 
 
ИНСТИТУТ ИОННО-ПЛАЗМЕННЫХ И ЛАЗЕРНЫХ 
ТЕХНОЛОГИЙ ИМЕНИ У.А.АРИФОВА
 
 
МИНИСТЕРСТВО ИННОВАЦИОННОГО РАЗВИТИЯ
РЕСПУБЛИКИ УЗБЕКИСТАН 
 
 
 
 
 
Восьмая Международная конференция
по Физической Электронике
IPEC-8 
 
23-24 сентября 2021
Ташкент, Узбекистан 
 
 
СБОРНИК
ТЕЗИСОВ ДОКЛАДОВ
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ташкент 2021
 


133 
STUDY OF STABILIZATION OF SELF-ASSEMBLY PROCESSES IN 
FULLERENE C
60
 SOLUTION
 
A.M.Kokhkharov, S.A.Bakhramov, U.K.Makhmanov, Sh.A.Esanov, 
B.A.Aslonov, B.A.Sindarov, Z.Bekmurodov 
Institute of Ion-Plasma and Laser Technologies named after U.A. Arifov, Academy of 
Sciences of the Republic of Uzbekistan, st. Durmon yuli 33, Tashkent, Uzbekistan; 
urol_m@mail.ru
  
Abstract:
Using the method of optical spectroscopy, the processes of self-
organization of fullerene C
60
molecules in a xylene solution in time are studied. The 
character of stability of synthesized fullerene nanoclusters in solution is discussed. 
Keywords: 
Fullerene C
60
, optical spectra, self-assembly, xylene.
The discovery and study of Buckminsterfullerene C
60
with a spherical structure 
since 1985, has led to revolutionary changes in modern nanotechnology [1]. 
Fullerenes, soluble in various organic solvents, are often analyzed using UV/visible 
spectrometry. However, there are few data on the changes in absorption coefficients 
for the C
60
fullerene in weakly polar solvents, for example, in xylene.
This article will investigate changes in the absorbance of a C
60
solution in 
xylene over time using UV/visible spectrometry. In the experiments, we used C
60
fullerene powder (SES Research, 
USA) with purity of less than 

99.8%, and xylene of analytical 
purity from Sigma Aldrich (USA). 
The figure shows the changes in the 
measured values of the optical 
density of a freshly prepared 
solution of fullerene C
60
for 
different 
storage 
times. 
Measurements were performed at a 
fixed wavelength of 

336 nm. The 
fixed concentration of C
60
in 
solution was 

1.85 mg/ml. As can 
be seen, inside a freshly prepared solution, the process of self-assembly of C
60
molecules immediately begins and lasts up to 15 days, naturally, in this case, the 
optical density values gradually increase. After 15 days of storage of the solution, the 
intensity of absorption is completely reduced, although the C
60
solution remains 
colloidal. The results show that the optical density of the C
60
solution after storage for 
30 and 35 days is practically indistinguishable, which allows us to conclude that the 
stability of the synthesized C
60
fullerene clusters in solution has been achieved. 
1.
Kroto H.W., et al. C
60
: Buckminsterfullerene //
Nature
, 1985, 318, 162-163. 
2.
Makhmanov U.K., et al. Organic Fractal Nano-Dimensional Structures Based on 
Fullerene C60 //
 Fullerenes, Nanotub. Carbon Nanostruct.
,
 
2019, 27, 273-278. 


219 

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