Abstract
Compounds in the CaO-B2O3-SnO2 system were prepared by solid-state reaction at 700-1100 °C in air. The phase relations in this system were investigated by powder X-ray diffraction (XRD). A previously reported calcium borostannnate, CaSn(BO3)2 (rhombohedral, R over(3, -) (No. 148), Z = 3, a = 4.85872(3), c = 16.07750(11) Å), was synthesized in this system. Titanium(IV)-doped solid solutions, CaSn1-xTix(BO3)2 (0 < x < 0.30), were prepared, and their cell parameters were refined by the Rietveld method. A broad blue-green emission at 489 nm was observed in the photoluminescence (PL) spectra of CaSn1-xTix(BO3)2. The maximum emission intensity was measured for CaSn0.99Ti0.01(BO3)2. The PL excitation peak of CaSn0.99Ti0.01(BO3)2 was observed at 263 nm (4.71 eV).
Original language | English |
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Pages (from-to) | 443-447 |
Number of pages | 5 |
Journal | Journal of Alloys and Compounds |
Volume | 490 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2010 Feb 4 |
Keywords
- Crystal structure
- Phase relation
- Photoluminescence
- Powder X-ray diffraction
- Solid-state reaction
- Titanium(IV)-doped calcium borostannates
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry