Influence of processing conditions on synthesis and photoluminescence of Eu3+-activated strontium stannate phosphors
Creators
- 1. Department of Materials Science and Engineering, National Cheng Kung University, No. 1, Ta-Hsueh Road, Tainan 70101, Taiwan (China)
Description
The synthesis and photoluminescence (PL) properties of strontium stannate crystals doped with europium grown by mechanical activation in a high-energy vibro-mill have been investigated. The characteristics of Sr2SnO4:Eu3+ powders were found to depend on the heating conditions and the amounts of europium ions. The XRD profiles revealed that the system (Sr1-xEu x)2SnO4, could form stable solid solutions in the composition range x 0-0.1. In the scanning electron microscopy (SEM) morphology observations, the shape of the grains was changed gradually from granular to globular as the calcination temperature increased from 1000 to 1300 deg. C. The calcined powders emit bright red luminescence centered at 619 nm due to the electric dipole transition 5D0 → 7F2, and the powders fired at 1200 deg. C were found to have the maximum PL intensity. The maximum PL intensity has been obtained for 5 mol% concentration of Eu3+ in Sr2SnO4
Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2005.02.019;
- PII
- S0925-8388(05)00158-1;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 398
- Journal Issue
- 1-2
- Journal Page Range
- p. 256-260
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37062178
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CALCINATION; DOPED MATERIALS; E1-TRANSITIONS; EUROPIUM COMPOUNDS; EUROPIUM IONS; OPTICAL PROPERTIES; PHOTOLUMINESCENCE; SCANNING ELECTRON MICROSCOPY; SOLID SOLUTIONS; STRONTIUM COMPOUNDS; SYNTHESIS; TIN COMPOUNDS; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHARGED PARTICLES; CHEMICAL REACTIONS; COHERENT SCATTERING; DECOMPOSITION; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; EMISSION; ENERGY-LEVEL TRANSITIONS; HOMOGENEOUS MIXTURES; IONS; LUMINESCENCE; MATERIALS; MICROSCOPY; MIXTURES; MULTIPOLE TRANSITIONS; PHOTON EMISSION; PHYSICAL PROPERTIES; PYROLYSIS; RARE EARTH COMPOUNDS; SCATTERING; SOLUTIONS; THERMOCHEMICAL PROCESSES
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.