Publikace detail

Remark on the optical gap in ZnO-Bi2O3-TeO2 glasses

Autoři: Ožďanová Jitka | Tichá Helena | Tichý Ladislav

Rok: 2007

Druh publikace: článek v odborném periodiku

Název zdroje: Journal of Non-Crystalline Solids

Název nakladatele: Elsevier Science BV

Místo vydání: Amsterdam

Strana od-do: 2799?2802

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Remark on the optical gap in ZnO-Bi2O3-TeO2 glasses	Four ZnO-Bi2O3-TeO2 glasses were prepared from high purity (4N5) oxides. From measurements of the optical transmission on very thin bulk samples the optical gap was determined at around 3.55 eV for the glasses studied. The temperature dependence of the optical gap was also determined from the room temperature close up to 500 K. Preliminary Raman scattering measurements indicate that with a decrease in TeO2 content, TeO4 trigonal bipyramid transformation proceeds into TeO3 trigonal pyramids.	Optical spectroscopy; Raman spectroscopy; Tellurites
eng	Remark on the optical gap in ZnO-Bi2O3-TeO2 glasses	Four ZnO-Bi2O3-TeO2 glasses were prepared from high purity (4N5) oxides. From measurements of the optical transmission on very thin bulk samples the optical gap was determined at around 3.55 eV for the glasses studied. The temperature dependence of the optical gap was also determined from the room temperature close up to 500 K. Preliminary Raman scattering measurements indicate that with a decrease in TeO2 content, TeO4 trigonal bipyramid transformation proceeds into TeO3 trigonal pyramids.	Optical spectroscopy; Raman spectroscopy; Tellurites

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