Laser Processing of Carbon Materials

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (30 June 2020) | Viewed by 2623

Special Issue Editor


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Guest Editor
Udmurt Federal Research Center UB RAS, 426067 Izhevsk, Russia
Interests: laser; nonlinear optics; nanostructured materials; photocurrent; laser spectroscopy
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Special Issue Information

Unprecedented scientific activity concerning the study and development of various carbon materials started between the end of the 20th century and the beginning of the 21st century and has continued growing. A large number of newly discovered allotropic modifications of carbon, possessing unique properties, and a modern set of instruments are fueling this rise.

Laser is one of the efficient instruments for the study and investigation of carbon materials with the most important parameters (average and pulsed power, wavelength, pulse duration, repetition rate) varying in a wide range.

Significant differences in the thermophysical, optical, and electrical properties of various forms of carbon material and unique parameters of laser radiation allow performing a variety of types of laser modification of carbon materials to obtain new knowledge on light–matter interaction, for the creation of planar metamaterials and three-dimensional photonic crystals, for the direct writing of information using lasers, and for other various uses in photonics, optoelectronics, and microelectronics.

We are interested in articles that study the laser processing of carbon materials.

Potential topics include but are not limited to the following:

  • New phenomena in interaction of laser radiation with carbon and nanocarbon materials;
  • Femtosecond laser modification of diamond and other carbon and nanocarbon materials;
  • Laser treatment, modification, and microstructuring of carbon and nanocarbon film structures.

Prof. Dr. Gennady M. Mikheev
Guest Editor

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Keywords

  • Laser modification
  • Laser treatment
  • Laser microstructuring
  • Femtosecond laser ablation
  • Carbon and nanocarbon materials

Published Papers (1 paper)

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Research

13 pages, 5459 KiB  
Article
Low-Power Laser Graphitization of High Pressure—High Temperature Nanodiamond Films
by Konstantin G. Mikheev, Tatyana N. Mogileva, Arseniy E. Fateev, Nicholas A. Nunn, Olga A. Shenderova and Gennady M. Mikheev
Appl. Sci. 2020, 10(9), 3329; https://doi.org/10.3390/app10093329 - 11 May 2020
Cited by 11 | Viewed by 2368
Abstract
Laser-induced graphitization of 100 nm monocrystals of diamond particles synthesized by high-pressure high-temperature (HP-HT) methods is not typically observed. The current study demonstrates the graphitization of 150 nm HP-HT nanodiamond particles in ca. 20-μm-thick thin films formed on a glass substrate when the [...] Read more.
Laser-induced graphitization of 100 nm monocrystals of diamond particles synthesized by high-pressure high-temperature (HP-HT) methods is not typically observed. The current study demonstrates the graphitization of 150 nm HP-HT nanodiamond particles in ca. 20-μm-thick thin films formed on a glass substrate when the intensity of a focused 633 nm He-Ne laser exceeds a threshold of ~ 33 kW/cm2. Graphitization is accompanied by green luminescence. The structure and morphology of the samples were investigated before and after laser excitation while using X-ray diffraction (XRD), Raman spectroscopy, atomic force (AFM), and scanning electron microscopy (SEM). These observations are explained by photoionization of [Ni-N]- and [N]-centers, leading to the excitation of electrons to the conduction band of the HP-HT nanodiamond films and an increase of the local temperature of the sample, causing the transformation of sp3 HP-HT nanodiamonds to sp2-carbon. Full article
(This article belongs to the Special Issue Laser Processing of Carbon Materials)
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