Vibronic spectra of rare-earth activated silicophosphate and germanophosphate glasses

Kolobkov, V. P.; Lun'kin, S. P.; Morozova, Iuliia; Chikovskii, A. N.; Beltadze, P. G.; Mshvelidze, G. G.

doi:10.1007/bf00662909

Cited by 2 publications

(3 citation statements)

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“…In studies of the local environments of Eu 3+ [6][7][8], Er 3+ , Ho 3+ [8], and Nd 3+ [9] in fluoroaluminate and fluorophosphate glasses, the activator concentration was rather high (e.g., 1 mol % EuF 3 [6] and 5 wt % Eu 2 O 3 [7,8]), but the possible effects of activator concentration and host composition on the nearest neighbor environment of the activator were left out of consideration.…”

Section: Introductionmentioning

confidence: 99%

Rare-Earth-Activated Fluorophosphate Glasses: Local Environment of the Activator and Capture Volume Model

2005

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Data are presented on the induced optical absorption and EPR in Ba(PO 3 ) 2 -MgF 2 glasses activated with Tb 2 O 3 and Eu 2 O 3 . The effect of activator concentration on the EPR spectra of the ê and ê centers in glasses differing in fluoride content is analyzed. The results indicate that fluorophosphate glasses can be characterized by two capture volumes which may differ several times, depending on the activator concentration. At low activator concentrations, corresponding to the largest capture volume, the activator ions seem to be in a phosphate environment. The maximum Tb 3+ concentration is comparable to the Eu 3+ concentration at which the luminescence spectrum points to a phosphate environment of the rare-earth ion. O 4 2-O 3 2-

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Section: Introductionmentioning

confidence: 99%

Rare-Earth-Activated Fluorophosphate Glasses: Local Environment of the Activator and Capture Volume Model

2005

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“…Telluride glasses are traditionally prepared by melt ing an oxide mixture batch in crucibles from oxides of the elements platinum and gold at 800°C [2,4].The temperature and duration of melting depend on the charge composition and mass. The material is capable of dissolving the crucible in the resulting glass forming melt; in this case, the amount of the substance passing into the melt can reach several wt % in the case of cru cibles from oxides, and 10 -3 -10 -4 wt % in the case of platinum and gold crucibles [5].…”

Section: Introductionmentioning

confidence: 99%

“…The vitrification range of the (TeO 2 ) 100 -x (WO 3 ) x glasses is (8)(9)(10)(11)) ≤ x ≤ (33-44), and it does not depend on the synthesis conditions (synthesis temperature, cooling rate, and crucible material) [2,3].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of glasses in the TeO2-WO3 system using plasma chemical oxidation of tellurium and tungsten chlorides

et al. 2012

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The possibility of producing tungsten-telluride glasses using plasma chemical vapor phase depo sition using corresponding chlorides as source components has been experimentally demonstrated. Homo geneous layers in the entire vitrification range of the TeO 2 -WO 3 system have been obtained. The concentra tion of metal impurities in the deposited layers does not exceed n × 10 -4 wt % that is comparable with their concentration in the source chlorides. Using the techniques of differential scanning calorimetry and Raman scattering, it has been shown that, at the melting stage, the layers obtained are vitreous and comparable in their characteristics with the glasses fabricated using traditional techniques.

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Vibronic spectra of rare-earth activated silicophosphate and germanophosphate glasses

Cited by 2 publications

References 0 publications

Rare-Earth-Activated Fluorophosphate Glasses: Local Environment of the Activator and Capture Volume Model

Rare-Earth-Activated Fluorophosphate Glasses: Local Environment of the Activator and Capture Volume Model

Fabrication of glasses in the TeO2-WO3 system using plasma chemical oxidation of tellurium and tungsten chlorides

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