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 738 0 |
 SM ISO690:2012IASENIUC, Oxana, YOVU, M., GHIULNARE, A., MESTERCA, Raluca, JDERU, A., ENACHESCU, Marius. Micro-Raman spectra of bulk GexAsxSe1-2X chalcogenide glasses. In: Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Science, 2018, vol. 19, pp. 545-550. ISSN 1454-9069. |
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  Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Science |
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| Volumul 19 / 2018 / ISSN 1454-9069 | ||||||
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In this work are reported the Micro-Raman spectra of GexAsxSe1-2x (x = 0.05÷0.30). The Micro-Raman spectra consist of three main peaks located around ν = 193 cm-1, ν = 213 cm-1, and ν = 255 cm-1. The peaks around ν = 193 cm-1 and ν = 213 cm-1 could be attributed to the vibration of GeSe bonds. The presence of the Raman peak at ν = 255 cm-1 is due to the bond-stretching vibration of the disordered Se chains and rings. With the increase of the Ge concentration this peak shifts to a higher wavenumber due to the shortening of Se chains. The peak around ν = 300 cm-1 is characteristic to Ge-Ge vibration mode. The Ge concentration slightly changes the shape of Micro-Raman spectra, mainly its ratio of the intensity. |
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| Cuvinte-cheie chalcogenide glasses, Coordination number, Micro-, Raman spectra |
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