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RESEARCH PRODUCT
Optical Properties of Irradiated Topaz Crystals
Nina Mironova-ulmaneLaima TrinklerV. Skvortsovasubject
TopazMaterials sciencePhotoluminescenceAbsorption bandengineeringAnalytical chemistryElectronIrradiationAbsorption (chemistry)engineering.materialSpectral lineIonNuclear chemistrydescription
The results of an investigation of UV-Visible absorption and photoluminescence spectra of colorless topaz before and after neutron irradiation, natural blue topaz from Ukraine, and yellow topaz are presented. We assume that the absorption band ~ 620 nm and broad emission band 300-700 nm in topaz crystals are associated with exchange interaction between a radiation defect (anion vacancies, which capture one or two electrons) and impurity ions Cr 3+ , Fe 3+ and Mn 2+ .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-04-20 | IOP Conference Series: Materials Science and Engineering |