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Photoluminescence quantum efficiency and energy transfer of ErRE silicate (RE = Y, Yb) thin films
- Source :
- Journal of Physics D: Applied Physics. 45:165101
- Publication Year :
- 2012
- Publisher :
- IOP Publishing, 2012.
-
Abstract
- Photoluminescence quantum efficiency and energy transfer were studied in ErRE (RE = Y, Yb) silicate thin films. For the first time, we experimentally determined the radiative/non-radiative decay rates of ErYb and ErY silicates and obtained photoluminescence quantum efficiencies of 0.28 ± 0.08 and 0.39 ± 0.13, respectively. Energy transfer between Yb and Er in ErYb silicate was investigated by comparing the effective excitation cross sections of ErYb and ErY silicate. At different pumping wavelengths, forward and backward energy transfer caused by the presence of Yb was experimentally demonstrated.
- Subjects :
- Materials science
Photoluminescence
Acoustics and Ultrasonics
Analytical chemistry
Condensed Matter Physics
Silicate
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
chemistry.chemical_compound
Wavelength
chemistry
Radiative transfer
Quantum efficiency
Atomic physics
Thin film
Quantum
Excitation
Subjects
Details
- ISSN :
- 13616463 and 00223727
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- Journal of Physics D: Applied Physics
- Accession number :
- edsair.doi...........006e9a380fb9ee821f8f81190f188f96