Synthesis and luminescence properties of nanocrystalline BaTiO3:Nd3+ obtained by sol-gel methods

• Autorzy: Pązik, R. , Hreniak, D. , Stręk, W.
• Języki publikacji: EN

Abstrakty

EN

Neodymium-doped barium titanate (BaTiO3) nanocrystalline powders were prepared by the sol-gel method. Structure and average grain sizes were analysed by X-ray powder diffraction (XRD) measurements. Grain sizes amount from 30 to 60 nm, depending on dopant concentration and sintering temperature. The luminescence properties of BaTiO3:Nd3+ were investigated as a function of the concentration of Nd3+ (0.5-2 mol %) and sintering temperature (700-1050 ?C). The influence of Nd3+ concentration on the grain size and crystal structure of BaTiO3 nanocrystallite powders was found and a weak hot emission from the 4F5/2 level was observed for the nanopowders obtained.

Słowa kluczowe

EN

barium titanate; neodymium; sol-gel; luminescence; size effect

• Czasopismo: Materials Science Poland
• Rocznik: 2004
• Tom: Vol. 22, No. 3
• Strony: 210--225
• Opis fizyczny: Bibliogr.25 poz.

Twórcy

autor

Pązik, R.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland,

autor

Hreniak, D.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland

autor

Stręk, W.

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław 2, Poland

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