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Monitoring structural phase transition of (Ge2S3)x (As2S3)1- x chalcogenide glass with Raman spectroscopy


Gamulin, Ozren; Ivanda, Mile; Mitsa, Vladimir; Balarin, Maja; Kosović, Marin
Monitoring structural phase transition of (Ge2S3)x (As2S3)1- x chalcogenide glass with Raman spectroscopy // Journal of molecular structure, 993 (2011), 1-3; 264-268 doi:10.1016/j.molstruc.2011.01.059 (međunarodna recenzija, članak, znanstveni)


Naslov
Monitoring structural phase transition of (Ge2S3)x (As2S3)1- x chalcogenide glass with Raman spectroscopy

Autori
Gamulin, Ozren ; Ivanda, Mile ; Mitsa, Vladimir ; Balarin, Maja ; Kosović, Marin

Izvornik
Journal of molecular structure (0022-2860) 993 (2011), 1-3; 264-268

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Chalcogenide glasses ; coordination number ; Raman spectroscopy ; structural phase transition

Sažetak
Chalcogenide glass thin films (Ge2S3)x (As2S3)1- x, with x = 0.3, 0.5, 0.7, and 0.9, were prepared by flash thermal evaporation of glass powders on c-Si substrate. We have investigated their structural properties for different average coordination numbers Z = 2.52, 2.6, 2.68 and 2.78. Structural changes were monitored by Raman scattering with two different excitation lines, λ = 1064 nm and λ = 514.5 nm. Recorded spectra confirmed that structural changes of the samples are connected with the change of average coordination number. Shift between spectra recorded with two different excitation lines is observed. The shift was discussed in terms of structural ordering at the threshold Z and its connection with the band-tail states.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

Napomena
Rad je prezentiran na skupu XXXth European Congress on Molecular Spectroscopy "Molecular spectroscopy and molecular structure", održanom od 29.08.-03.09.2010., Florence, Italija.



POVEZANOST RADA


Projekt / tema
098-0982904-2898 - Fizika i primjena nanostruktura i volumne tvari (Mile Ivanda, )
108-1080134-3105 - Mehanizmi narušavanja strukture lipoproteina djelovanjem vanjskih čimbenika (Ozren Gamulin, )

Ustanove
Institut "Ruđer Bošković", Zagreb,
Medicinski fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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