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.
| Published in | International Journal of Materials Science and Applications (Volume 7, Issue 1) |
| DOI | 10.11648/j.ijmsa.20180701.11 |
| Page(s) | 1-5 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2024. Published by Science Publishing Group |
Nanoparticles, Layered Crystals, 2-D Materials, Spectral Properties, Laser Ablation
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APA Style
Arif Pashayev, Aydin Ulubey, Kerim Allahverdiev, Sami Sozeri, Majda Hadzic. (2018). Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation. International Journal of Materials Science and Applications, 7(1), 1-5. https://doi.org/10.11648/j.ijmsa.20180701.11
ACS Style
Arif Pashayev; Aydin Ulubey; Kerim Allahverdiev; Sami Sozeri; Majda Hadzic. Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation. Int. J. Mater. Sci. Appl. 2018, 7(1), 1-5. doi: 10.11648/j.ijmsa.20180701.11
AMA Style
Arif Pashayev, Aydin Ulubey, Kerim Allahverdiev, Sami Sozeri, Majda Hadzic. Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation. Int J Mater Sci Appl. 2018;7(1):1-5. doi: 10.11648/j.ijmsa.20180701.11
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Download@article{10.11648/j.ijmsa.20180701.11,
author = {Arif Pashayev and Aydin Ulubey and Kerim Allahverdiev and Sami Sozeri and Majda Hadzic},
title = {Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation},
journal = {International Journal of Materials Science and Applications},
volume = {7},
number = {1},
pages = {1-5},
doi = {10.11648/j.ijmsa.20180701.11},
url = {https://doi.org/10.11648/j.ijmsa.20180701.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20180701.11},
abstract = {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.},
year = {2018}
}
TY - JOUR T1 - Spectral Properties of GaS Nanoparticles Obtained by Laser Ablation AU - Arif Pashayev AU - Aydin Ulubey AU - Kerim Allahverdiev AU - Sami Sozeri AU - Majda Hadzic Y1 - 2018/01/02 PY - 2018 N1 - https://doi.org/10.11648/j.ijmsa.20180701.11 DO - 10.11648/j.ijmsa.20180701.11 T2 - International Journal of Materials Science and Applications JF - International Journal of Materials Science and Applications JO - International Journal of Materials Science and Applications SP - 1 EP - 5 PB - Science Publishing Group SN - 2327-2643 UR - https://doi.org/10.11648/j.ijmsa.20180701.11 AB - 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. VL - 7 IS - 1 ER -
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