Evaluation of the composition and morphology of a WTi/Si system processed by a picosecond laser
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Autori
Petrović, Suzana![](/themes/MirageVinar/images/orcid.png)
Peruško, Davor
![](/themes/MirageVinar/images/orcid.png)
Radović-Bogdanović, I.
Branković, Goran O.
![](/themes/MirageVinar/images/orcid.png)
Čekada, Miha
Gaković, Biljana M.
![](/themes/MirageVinar/images/orcid.png)
Jaksic, M.
Trtica, Milan
![](/themes/MirageVinar/images/orcid.png)
Milosavljević, Momir
![](/themes/MirageVinar/images/orcid.png)
Članak u časopisu
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this work we studied the influence of laser radiation on the composition, structure and morphology of WTi thin films deposited on n-type (100) silicon wafers. The films were deposited by d.c. sputtering from a 70:30 at% W-Ti target, using Ar ions, to a thickness of similar to 190 nm. Irradiation was performed with a pulsed Nd:YAG laser operating at 1064 nm, whereas the pulse duration was 150 ps. Laser fluences of 3.2 and 5.9 J/cm(2) were found to be sufficient for modification of the WTi/silicon target system. The results show: (i) ablation of WTi thin film and a Si substrate in the central zone of spots, (ii) appearance of hydrodynamic features like resolidified material, (iii) partial ablation of the WTi thin film at the periphery and (iv) appearance of thin film cracks at the far periphery. On the non-ablated areas, the laser modification induced changes in composition, such as inter-mixing of components at the WTi/Si interface with formation of silicides in both metals. Surface ...oxidation was the dominant process in the ablated areas, which is demonstrated by the presence of a SiO2 phase.
Ključne reči:
WTi coating / surface modification / microstructure / interface / oxidationIzvor:
Metals and Materials International, 2012, 18, 3, 457-463Finansiranje / projekti:
- Efekti dejstva laserskog zračenja i plazme na savremene materijale pri njihovoj sintezi, modifikaciji i analizi (RS-MESTD-Basic Research (BR or ON)-172019)
- Generisanje i karakterizacija nanofotonskih funkcionalnih struktura u biomedicini i informatici (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45016)
- Slovenian Research Agency, Ministry of Science, Education and Sports of the Republic of Croatia
DOI: 10.1007/s12540-012-3012-4
ISSN: 1598-9623
WoS: 000305689900012
Scopus: 2-s2.0-84863816228
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Petrović, Suzana AU - Peruško, Davor AU - Radović-Bogdanović, I. AU - Branković, Goran O. AU - Čekada, Miha AU - Gaković, Biljana M. AU - Jaksic, M. AU - Trtica, Milan AU - Milosavljević, Momir PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4912 AB - In this work we studied the influence of laser radiation on the composition, structure and morphology of WTi thin films deposited on n-type (100) silicon wafers. The films were deposited by d.c. sputtering from a 70:30 at% W-Ti target, using Ar ions, to a thickness of similar to 190 nm. Irradiation was performed with a pulsed Nd:YAG laser operating at 1064 nm, whereas the pulse duration was 150 ps. Laser fluences of 3.2 and 5.9 J/cm(2) were found to be sufficient for modification of the WTi/silicon target system. The results show: (i) ablation of WTi thin film and a Si substrate in the central zone of spots, (ii) appearance of hydrodynamic features like resolidified material, (iii) partial ablation of the WTi thin film at the periphery and (iv) appearance of thin film cracks at the far periphery. On the non-ablated areas, the laser modification induced changes in composition, such as inter-mixing of components at the WTi/Si interface with formation of silicides in both metals. Surface oxidation was the dominant process in the ablated areas, which is demonstrated by the presence of a SiO2 phase. T2 - Metals and Materials International T1 - Evaluation of the composition and morphology of a WTi/Si system processed by a picosecond laser VL - 18 IS - 3 SP - 457 EP - 463 DO - 10.1007/s12540-012-3012-4 ER -
@article{ author = "Petrović, Suzana and Peruško, Davor and Radović-Bogdanović, I. and Branković, Goran O. and Čekada, Miha and Gaković, Biljana M. and Jaksic, M. and Trtica, Milan and Milosavljević, Momir", year = "2012", abstract = "In this work we studied the influence of laser radiation on the composition, structure and morphology of WTi thin films deposited on n-type (100) silicon wafers. The films were deposited by d.c. sputtering from a 70:30 at% W-Ti target, using Ar ions, to a thickness of similar to 190 nm. Irradiation was performed with a pulsed Nd:YAG laser operating at 1064 nm, whereas the pulse duration was 150 ps. Laser fluences of 3.2 and 5.9 J/cm(2) were found to be sufficient for modification of the WTi/silicon target system. The results show: (i) ablation of WTi thin film and a Si substrate in the central zone of spots, (ii) appearance of hydrodynamic features like resolidified material, (iii) partial ablation of the WTi thin film at the periphery and (iv) appearance of thin film cracks at the far periphery. On the non-ablated areas, the laser modification induced changes in composition, such as inter-mixing of components at the WTi/Si interface with formation of silicides in both metals. Surface oxidation was the dominant process in the ablated areas, which is demonstrated by the presence of a SiO2 phase.", journal = "Metals and Materials International", title = "Evaluation of the composition and morphology of a WTi/Si system processed by a picosecond laser", volume = "18", number = "3", pages = "457-463", doi = "10.1007/s12540-012-3012-4" }
Petrović, S., Peruško, D., Radović-Bogdanović, I., Branković, G. O., Čekada, M., Gaković, B. M., Jaksic, M., Trtica, M.,& Milosavljević, M.. (2012). Evaluation of the composition and morphology of a WTi/Si system processed by a picosecond laser. in Metals and Materials International, 18(3), 457-463. https://doi.org/10.1007/s12540-012-3012-4
Petrović S, Peruško D, Radović-Bogdanović I, Branković GO, Čekada M, Gaković BM, Jaksic M, Trtica M, Milosavljević M. Evaluation of the composition and morphology of a WTi/Si system processed by a picosecond laser. in Metals and Materials International. 2012;18(3):457-463. doi:10.1007/s12540-012-3012-4 .
Petrović, Suzana, Peruško, Davor, Radović-Bogdanović, I., Branković, Goran O., Čekada, Miha, Gaković, Biljana M., Jaksic, M., Trtica, Milan, Milosavljević, Momir, "Evaluation of the composition and morphology of a WTi/Si system processed by a picosecond laser" in Metals and Materials International, 18, no. 3 (2012):457-463, https://doi.org/10.1007/s12540-012-3012-4 . .