Published February 2011
| Version v1
Journal article
Strong infrared-to-visible frequency upconversion in Er3+-doped Sr2CeO4 powders
- 1. PG-Ciencia dos Materiais, Universidade Federal do Vale do Sao Francisco, 48902-300 Juazeiro, BA (Brazil)
- 2. Instituto de Fisica, Universidade Federal Fluminense, 24210-346 Niteroi, RJ (Brazil)
Description
Efficient upconversion (UC) luminescence is demonstrated in Er3+:Sr2CeO4 powders prepared by combustion synthesis and exposed to near-infrared (∼975 nm) radiation. The UC emission lines observed at ∼530, ∼550 and ∼665 nm correspond, respectively, to 2H11/2→4I15/2, 4S3/2→4I15/2 and 4F9/2→4I15/2 4f-4f transitions of Er3+. X-ray powder diffraction data showed that the SrCO3 phase (impurity) is dramatically reduced when Sr2+ is partially substituted by Mg2+ ions. The UC phenomenon was investigated by use of continuous wave and pulsed laser excitation and the UC mechanism was attributed to energy transfer between excited Er3+ ions.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jlumin.2010.10.034Additional details
Identifiers
- DOI
- 10.1016/j.jlumin.2010.10.034;
- PII
- S0022-2313(10)00466-7;
Publishing Information
- Journal Title
- Journal of Luminescence
- Journal Volume
- 131
- Journal Issue
- 2
- Journal Page Range
- p. 342-346
- ISSN
- 0022-2313
- CODEN
- JLUMA8
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42082913
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CERIUM COMPOUNDS; COMBUSTION; DOPED MATERIALS; ERBIUM IONS; EXCITATION; LASERS; LUMINESCENCE; MAGNESIUM IONS; OXIDES; PHOSPHORS; POWDERS; STRONTIUM CARBONATES; STRONTIUM IONS; SYNTHESIS; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CHALCOGENIDES; CHARGED PARTICLES; CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; EMISSION; ENERGY-LEVEL TRANSITIONS; IONS; MATERIALS; OXIDATION; OXYGEN COMPOUNDS; PHOTON EMISSION; RARE EARTH COMPOUNDS; SCATTERING; STRONTIUM COMPOUNDS; THERMOCHEMICAL PROCESSES
Optional Information
- Copyright
- Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.