Kasumov M. Peculiarities of the formation of heavy fullerenes, obtained in arc plasma, and their electronic properties.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U004066

Thesis Registration Form

0413U004066.pdf

Applicant for

Kasumov Mais Mamedovich

Specialization

01.04.07 - Фізика твердого тіла

Date of defense

14-05-2013

Specialized Academic Board

Д 26. 168. 02

Essay

The synthesis of fullerenes in an arc discharge and secondary synthesis with fullerene mixture under the influence of a pulsed laser beam have been investigated. In the arc discharge device first with a hollow electrode at a flow rate of helium 5 cm3/s, the discharge current 70 A product was obtained with the mass spectrum (AutoFlex): C60,…,C150 - first with a substantially reduced part of the amorphous component. The calculation showed that the path length and duration of the formation of fullerenes, these parameters exceed normal discharge. Spectroscopy of plasma discharge simulation by the code Specair 2.2 shows that the electron temperature of 3000 <T<6000 K, and the starting particles, forming radicals and clusters are electrons, atoms and ions of carbon. In the formation of uncompleted fullerenes in the mass spectrum observed anomalous proximity packs isotopic lines associated with the isomerization hydrogenated carbyne chains; the structures include 2 or 4 carbon atoms in sp-hybridization; the mass spectrum depends on the sign of the charge of fullerenes, so difference the energy of ion clusters with the number n of carbon atoms is equal to D = CEn + + EIn <= 2fi = 10,74 eV, where CEn - the electron affinity, EIn - the ionization energy of the cluster. Secondary synthesis of fullerene optimally carried out at the radiation power density of pulsed laser 0,1 <= W <= 0,4 MW/cm2.

Thesis supervisor

Solonin Juriy Mikhaylovich

Official opponents

Нищенко Михайло Маркович
Мацуй Людмила Юріївна

Files

01.Первая_стр_Документ Microsoft Word.doc

02.Содержание_2_2-3.doc

03.Введение_6_4-9.doc

04.Гл.1 Обзор_27_10-36.doc

05.Гл.2.Методика_20_37-56.doc

06.Гл.3.1. _11 _57-67.doc

07. Гл.3.2._18 _68-85.doc

08.Гл.3.3_7_86-92.doc

09.Гл.3.4_13_93-105.doc

10.Гл.3.5.Спкт_10_106-115.doc

11.Гл.4.1._12_116-127.doc

12.Гл.4.2.4.3_18_128-145.doc

13.ВЫВОДЫ_2_146-147.doc

14.Литер_15_148-162.doc

15.Приложение_7_163-169.doc

16. Первая_стр.doc

17. Вторая_стр.doc

18.Автореф++.doc

OKD4-134066.txt

Similar theses

0424U000081

Igor G. Churilov

Peculiarities of thermal influence on morphological changes and the mechanism of liquid phase formation in condensed one-component films (Pb, Sn, In, Bi) and in binary layered films (Bi/Sn, Pb/Sn, Pb/In)

0424U000065

Mazur Dmytro V.

X-ray absorption and magnetic circular dichroism spectra features in compounds containing oxygen and based on 4th period metals

0523U100214

Serhii V. Oliinyk

Physical basis of formation of electrical and photoelectric properties of AIIBVI crystals and electrical properties of multicomponent coatings

0522U100045

Bohdanov Yevhen Ivanovych

Effects of azimuthal asymmetry of radiation scattering in crystals and new possibilities of diffuse-dynamical diffractometry

0522U100002

Vladymyrskyi Igor A.

Thermally-induced structural phase transitions in heterogeneous systems based on magnetic and nonmagnetic nanolayers