PHOTOLUMINESCENCE OF Eu2O3 DOPED SrTiO3 AND SnO2 POWDER

doi:10.7517/j.issn.1674-0475.1992.01.66

Imaging Science and Photochemistry ›› 1992, Vol. 10 ›› Issue (1): 66-70.DOI: 10.7517/j.issn.1674-0475.1992.01.66

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PHOTOLUMINESCENCE OF Eu₂O₃ DOPED SrTiO₃ AND SnO₂ POWDER

BI ZHI-CHU¹, J. KOSSANYI², P. CÉNÉDÈSE³, A. QUIVY³

1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P. K. China;
2. Laboratoire des Materiaux Molcculaircs, C. N. R. S., Prance;
3. Centre d’Etudes de Chimie Metallurgique, C. N. R. S., France

Received:1990-07-14 Revised:1991-02-27 Online:1992-02-20 Published:1992-02-20

Abstract

Abstract: Powder of large energy gap semiconductor SrTiO₃ and SnO₂ has been doped with Eu₂O₃ (1 atom % of Eu) and their photoluminescent properties were investigated. It was found that the main behaviors of their emission are similar with that of pure Eu₂O₃ but the relative intensity and the emission pattern of the spectra is greatly changed. It was shown from X-ray powder diffraction analysis that the Eu³⁺ ion in 1% Eu doped SrTiO₃ is located at the interstitial site of the SrTiO₃ lattice and in 1% Eu doped SnO₂ is combined with SnO₂ to from Eu₂Sn₂O₇.

Key words: rare earth oxide, large energy gap semiconductor, doping, photolumine-scence

BI ZHI-CHU, J. KOSSANYI, P. CÉNÉDÈSE, A. QUIVY. PHOTOLUMINESCENCE OF Eu₂O₃ DOPED SrTiO₃ AND SnO₂ POWDER[J]. Imaging Science and Photochemistry, 1992, 10(1): 66-70.

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PHOTOLUMINESCENCE OF Eu₂O₃ DOPED SrTiO₃ AND SnO₂ POWDER

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