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 SM ISO690:2012LUNGU, Ion, GHIMPU, Lidia, POTLOG, Tamara, MEDVIDS, A., MOISE, Calin. Phase Transition in Laser Irradiated TiO2 Thin Films. In: Nanotechnologies and Biomedical Engineering, Ed. 5, 3-5 noiembrie 2021, Chişinău. Chişinău: Pontos, 2021, Ediția 5, p. 62. ISBN 978-9975-72-592-7. |
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| Nanotechnologies and Biomedical Engineering Ediția 5, 2021 |
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Conferința "Nanotechnologies and Biomedical Engineering" 5, Chişinău, Moldova, 3-5 noiembrie 2021 | ||||||
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In this study, the laser processing of thermally annealed TiO2 thin films at 420 ℃ in hydrogen atmosphere, utilizing an pulsed fourth-harmonic generation Nd: YAG laser employing different laser intensities in the atmosphere at room temperature, has been reported. Further, the surface morphology and crystalline structure have been investigated by means of atomic force microscopy [AFM], X-ray diffraction [XRD], Raman analysis. The AFM images obtained show that the film’s surface changes as the effect of the laser processes. Moreover, XRD and Raman analysis of the TiO2 thin films indicate at the threshold laser intensity, Ith = 66 MW/cm2 of the fourth-harmonic generation Nd: YAG laser phase transition from atanase-rutile to a crystalline 100% rutile. |
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