Luminescence properties of Eu3+-doped Al2(WO4)3

• Autorzy: Macalik, L. , Hanuza, J. , Hermanowicz, K. , Godlewska, P. , Sidorov, N. V.
• Języki publikacji: EN

Abstrakty

EN

Emission spectra of Al2(WO4)3 doped with Eu3+ were recorded at room temperature (orthorhombic phase) and at 10 K (monoclinic phase). The luminescence excitation spectra and luminescence decay profiles were recorded for both structural modifications at RT and LN2T, and the luminescence lifetimes of Eu3+ have been estimated. Two-site behaviour of the optically active ions in both phases has been revealed in the luminescence studies. However, the emission decay profiles give one lifetime of the 5D2 level, equal to 1.8 ms and 848.4 žs at room temperature and liquid nitrogen temperature, respectively. The results obtained have been explained in terms of an unusual location of Eu3+ ions inside the crystal tunnels, parallel to the c-axis.

Słowa kluczowe

EN

aluminium tungstate; luminescence; excitation; optical properties

• Czasopismo: Materials Science Poland
• Rocznik: 2004
• Tom: Vol. 22, No. 2
• Strony: 145--152
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Macalik, L.

• Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, Wrocław, Poland,

autor

Hanuza, J.

• Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, Wrocław, Poland
• Department of Bioorganic Chemistry, Faculty of Engineering and Economics, University of Economics, Wrocław, Poland

autor

Hermanowicz, K.

• Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, Wrocław, Poland

autor

Godlewska, P.

• Department of Bioorganic Chemistry, Faculty of Engineering and Economics, University of Economics, Wrocław, Poland

autor

Sidorov, N. V.

• Institute of Chemistry, Kola Science Centre, Russian Academy of Sciences, Apatyty, Murmansk Region, Russia

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