ELECTRICALLY CONDUCTING STRUCTURES IN LASER-MODIFIED DIAMOND-LIKE CARBON FILMS
Abstract
Modification of diamond-like carbon (DLC) films by pulsed laser radiation with a wavelength of 532 nm and a pulse duration of 18 ns was investigated. Irradiation of DLC films with laser fluence over 0.4 J/cm2 was accompanied by the formation of electrically conducting structures with a surface resistance varying from thousands to a kΩ/sq. The dependence of conductivity of films on the laser fluence was established. A relationship between the energy density of laser radiation and the structural changes in films, their heating and evaporation is discussed.
About the Authors
A. N. ChumakovBelarus
I. S. Nikonchuk
Belarus
N. A. Poklonski
Belarus
N. I. Gorbachuk
Belarus
О. N. Poklonskaya
Belarus
V. Е. Obukhov
Belarus
References
1. Robertson J. // Materials Science and Engineering R. 2002. N 37. P. 129-281.
2. Армеев В. Я., Волков Ю. Я., Конов В. И. и др. // Письма в ЖТФ. 1990. № 16. С. 54-56.
3. Файзрахманов И. А., Базаров В. В., Степанов А. Л., Хайбуллин И. Б. // ФТП. 2003. № 37. С. 748-752.
4. Грицкевич Р. Н., Поклонский Н. А., Горбачук Н. И., ШпакЕ. П. Пат. 14221 Респ. Беларусь / Афщ. бюл. Нац. цэнтр штэлектуал. уласнасщ. 2011. № 2. С. 136.
5. Ferrari A. c., Robertson J. // Phys. Rev. B. 2001. N 301. Р. 075414 (13).
6. Tan P. H., Dimovsky S., Gogotsi Yu. // Phil. Trans. R. Soc. Lond. 2004. A362. Р. 2289-2310.
7. Поклонский Н. А., Горбачук Н. И., Ксеневич В. К. и др. // Аморфные и микрокристаллические полупроводники: сб. тр. IX Междунар. конф. СПб., 2014. С. 29-30.
8. chumakov A., NikonchukI., Poklonski N. et al. // Proc. of the X Symp. of Belarus and Serbia on Physics and Diagnostics of Laboratory and Astrophysical Plasmas. Belgrade, 2014. P. 23-26.
9. Kononenko T. V., Pimenov S. M., Kononenko V V et al. // Appl. Phys. A. 2004. N 79. Р. 543-549.