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Fabrication and evaluation of green-light emitting Ta2O5:Er, Ce co-sputtered thin films
- Source :
- Results in Physics, Vol 5, Iss C, Pp 78-79 (2015)
- Publication Year :
- 2015
- Publisher :
- Elsevier, 2015.
-
Abstract
- Erbium and cerium co-doped tantalum-oxide (Ta2O5:Er, Ce) thin films were fabricated using radio-frequency co-sputtering of Ta2O5, Er2O3, and CeO2 for the first time. Enhanced green-light emission due to Er3+ that seems to be sensitized by Ce3+ was observed from the film annealed at 900 °C for 20 min. From XRD measurements of the films, the β-Ta2O5 (orthorhombic), δ-Ta2O5 (hexagonal), and (201) Ta2O5 phases seem to be very important for obtaining green PL from them. Such Ta2O5:Er, Ce co-sputtered films can be used as high-refractive-index materials of autocloned photonic crystals that can be applied to novel green-light-emitting devices, and they will also be used as multi-functional coating films that can work both as anti-reflection and down-conversion films for realizing high-efficiency silicon solar cells.
- Subjects :
- Tantalum oxide
Erbium
Cerium
Co-sputtering
Green-light emission
Physics
QC1-999
Subjects
Details
- Language :
- English
- ISSN :
- 22113797
- Volume :
- 5
- Issue :
- C
- Database :
- Directory of Open Access Journals
- Journal :
- Results in Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.69aa043fa3824c4eb8969d504b7608c5
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.rinp.2015.02.002