Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Citado por Google
- Similares en SciELO
- Similares en Google
Compartir
Ingeniería y competitividad
versión impresa ISSN 0123-3033versión On-line ISSN 2027-8284
Resumen
MOSQUERA, Edgar. Luminescence at low temperature in pure ZnO phosphors. Ing. compet. [online]. 2020, vol.22, n.2, 8846. Epub 30-Nov-2020. ISSN 0123-3033. https://doi.org/10.25100/iyc.v22i2.8846.
In this paper, samples of pure ZnO were prepared through solid-state chemical reaction, and optical spectral properties were investigated at low temperature. It was found that the strong broad band emission was shifted to the blue side with increase of temperature. It is tentatively attributed to the change of local electric field from electric dipoles, orientation of which is sensitive to temperature. The ultraviolet sharp lines observed at low temperatures are assigned to bound excitons and their phonon replicas.
Palabras clave : Excitons; Phonons; Photoluminescence (PL); ZnO.