Spectroscopic Research of Interaction in the Systems Ge-In2O3- M xOy (M-Sn(IV), La, Sm, Eu)

V.F. Zinchenko; I.R. Magunov; G.V. Nechyporenko; I.V. Stoyanova; L.V. Sadkovska

doi:10.15330/pcss.18.3.347-353

Authors

V.F. Zinchenko A. V. Bogatsky Physico-Chemical Institute of NAS of Ukraine
I.R. Magunov A.V. Bogatsky Physico-Chemical Institute of NAS of Ukraine
G.V. Nechyporenko A. V. Bogatsky Physico-Chemical Institute of NAS of Ukraine
I.V. Stoyanova A. V. Bogatsky Physico-Chemical Institute of NAS of Ukraine
L.V. Sadkovska A. V. Bogatsky Physico-Chemical Institute of NAS of Ukraine

DOI:

https://doi.org/10.15330/pcss.18.3.347-353

Keywords:

the systems Germanium - metal oxide, spectral characteristics, interaction, thermal evaporation

Abstract

Using methods of IR transparency spectroscopy in a range of 1200 – 200 cm-1 and diffuse reflectance spectroscopy in a range of 200 – 2500 nm the character of interaction in the systems Ge-In₂O₃, Ge-In₂SnO₅, Ge-LnInO₃ (Ln - La, Sm, Eu) is investigated. Essential change in spectral characteristics of systems with the appearance of new bands and disappearance of previous ones is established at annealing of composites of Germanium - metal oxide composition which confirms the fact of oxidation-reduction interaction between components with formation of volatile products, mainly In₂O and GeO. Thermodynamic calculations well coincide with experimentally established values of conditional temperatures of evaporation. Systems are perspective for obtaining thin-film coatings interference optics of a IR range of a spectrum.

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