Formation of nanostructured Tb3+-doped yttrium aluminium garnets by the glycol route

• Autorzy: Mazur P. , Hreniak D. , Niittykoski J. , Stręk W. , Hölsä J.
• Konferencja: Sol-Gel Materials Research, Technology, Applications SGM'04, 6-11 june 2004
• Języki publikacji: EN

Abstrakty

EN

Terbium-doped nanocrystalline yttrium aluminium garnet phases, Y3Al5O12:Tb3+ (YAG:Tb3+), were obtained by using rare-earth nitrates as the starting materials, together with citric acid and ethylene glycol according to the Pechini method. Thermogravimetric and differential thermal analysis were used to study the thermal decomposition of the precursor gels and the formation of nanocrystalline YAG:Tb3+. An increase in garnet nanocrystallite size from 20 to 40 nm with annealing temperature increasing from 800 to 1160 °C was evidenced with X-ray powder diffraction measurements. The intensity as well as the decay times of both 5D3 and 5D4 emissions of Y3Al5O12:Tb3+ were not found to depend on annealing and were thus independent of crystal size.

Słowa kluczowe

EN

garnet; YAG; nanocrystals; luminescence; terbium

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 1
• Strony: 261--268
• Opis fizyczny: Bibliogr. 22 poz.

Twórcy

autor

Mazur P.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

autor

Hreniak D.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

autor

Niittykoski J.

• Department of Chemistry, University of Turku, Turku, Finland

autor

Stręk W.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

autor

Hölsä J.

• Department of Chemistry, University of Turku, Turku, Finland

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