Volume 7, Issue 1, January 2018, Page: 1-5
Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation
Arif Pashayev, Department of Electronic Technologies, National Aviation Academy, Baku, Azerbaijan
Aydin Ulubey, Department of Physics, Trakya University, Edirne, Turkey
Kerim Allahverdiev, Department of Electronic Technologies, National Aviation Academy, Baku, Azerbaijan
Sami Sozeri, Department of Physics, Trakya University, Edirne, Turkey
Majda Hadzic, Department of Physics, Trakya University, Edirne, Turkey
Received: Aug. 14, 2017;       Accepted: Aug. 29, 2017;       Published: Jan. 2, 2018
DOI: 10.11648/j.ijmsa.20180701.11      View  2123      Downloads  114
Bulk single crystals of GaS were grown by Bridgman-Stockbarger method in an evacuated (10-6 Torr) quartz ampoules of optical quality. Nanoparticles of quasi 2-D GaS crystals were obtained by laser ablation (LA) technique (KrF Excimer laser at 248 nm (COHERENT COMPex 201), and characterized by: XRF, GDOES, SEM, TEM and UV-VIS absorption spectroscopy. Nanoparticles obtained for the first time were ablated by using of excimer KrF laser operated at f = 50 Hz with pulse duration t = 4 ns and maximum energy 200 mJ. Obtained results are analyzed with respect to particle size. Absorption spectra of particles with diameter less than 18 nm turned out to be shifted in the blue range of spectra. Blue shift in the optical absorption spectra of GaS nanoparticles with decreasing the particle sizes was explained by presence of nanocrystals in the quantum size regime. These results are consistent with a perturbation of GaS band structure due to carrier confinement, resulting in a widening of the forbidden gap.
Nanoparticles, Layered Crystals, 2-D Materials, Spectral Properties, Laser Ablation
To cite this article
Arif Pashayev, Aydin Ulubey, Kerim Allahverdiev, Sami Sozeri, Majda Hadzic, Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation, International Journal of Materials Science and Applications. Vol. 7, No. 1, 2018, pp. 1-5. doi: 10.11648/j.ijmsa.20180701.11
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
K. Maschke, and F. Levy, “Landolt-Bornstein Numerical Data and International Relationship in Science and Technology”, New Series, Group III: Crystal and Solid State Physics], Springer-Verlag, Berlin/Heidelberg/New York/Tokyo, v. III/17f, pp. 530 (1983).
J. C. Irwin, R. M. Hoff, B. P. Clayman, R. A. Bromley, “Long Wavelength Lattice Vibrations in GaS and GaSe”, Solid State Commun. 13, No 9, pp. 1531-1536 (1973).
K. Allakhverdiev, F. Ismailov, L. Kador, M. Braun, “Second Harmonic Generation in GaS Crystals”, Solid State Commun. 104, No 1, pp. 1-3 (1997).
K. Allakhverdiev, J. Hagen, Z. Salaeva, “On a Possibility to Form Small Crystallites of Layered Gallium Selenide via Ultrasonic Treatment”, Phys. Stat. Sol. a 163, pp. 212-127 (1997).
E. Yu. Salaev, K. R. Allahverdiyev, “Dynamic and tatic nonlinear optical effects in layered gallium selenide-type crystals”, Baku, Elm, (in Russian), pp. 229 (1993).
N. C. Fernelius, “Properties of gallium selenide single crystals,” Prog. Cryst. Growth Charact. Mater., v. 28(4), pp. 275-353 (1994).
G. A. Gibson, A. Chaiken, K. Nauka, C. C. Yang, R. Davidson, A. Holden, R. Bicknell, B. S. Yeh, J. Chen, H. Liao, S. Subramanian, D. Schut, J. Jasinski, Z. Liliental-Weber, “Phase-change recording medium that enables ultrahigh-density electron-beam data storage,” Appl. Phys. Lett., v. 86(5), pp. 051902-051906 (2005).
K. R. Allakhverdiev, “Optical properties and vibrational spectra of layered and chained crystals of A3B6, A3B3C26 and their Solid solutions”, Dissertation for the Degree of Doctor of the Physical-Mathematical Sciences, (in Russian), Institute of Physics Azerbaijan Academy of Sciences, 1980 Baku, Azerbaijan, p. 313.
A. Pashayev, B. Tunaboylu, K. Allahverdiyev, E. Salaev, B. Tagiyev, “Linear and NLO Spectroscopy of GaSe and InSe Nanoparticles Formed via Laser Ablation”, XII International Conference on Atomic and Molecular Pulsed Lasers, Edited by Victor F. Tarasenko, Andrey M. Kabanov (2015), Proceedings of SPIE, v. 9810, pp. 981018-1–981018-12 (2016).
L. E. Brus, “Electron-electron and electron-hole interactions in small semiconductor crystallites: the size dependence of the lowest excited electronic state”, J. Chem. Phys., v. 80, pp. 1403-1411 (1984).
Browse journals by subject