Luminescence at low temperature in pure ZnO phosphors
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| Format: | Artículo científico |
| Language: | en |
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Universidad del Valle
2020
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| _version_ | 1876428362324377600 |
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| author | Edgar Mosquera |
| author_facet | Edgar Mosquera |
| contents | Luminescence at low temperature in pure ZnO phosphors Edgar Mosquera Ingeniería ZnO Phonons Excitons Photoluminescence (PL) 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. 2020 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291365765005 https://www.redalyc.org/journal/2913/291365765005/ https://www.redalyc.org/journal/2913/291365765005/html/ https://www.redalyc.org/journal/2913/291365765005/291365765005.epub https://www.redalyc.org/journal/2913/291365765005/movil 10.25100/iyc.v22i2.8846 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.2 Vol.22 |
| format | Artículo científico |
| id | redalyc_291365765005 |
| institution | Redalyc |
| language | en |
| publishDate | 2020 |
| publisher | Universidad del Valle |
| spellingShingle | Luminescence at low temperature in pure ZnO phosphors Edgar Mosquera Ingeniería ZnO Phonons Excitons Photoluminescence (PL) Luminescence at low temperature in pure ZnO phosphors Edgar Mosquera Ingeniería ZnO Phonons Excitons Photoluminescence (PL) 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. 2020 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291365765005 https://www.redalyc.org/journal/2913/291365765005/ https://www.redalyc.org/journal/2913/291365765005/html/ https://www.redalyc.org/journal/2913/291365765005/291365765005.epub https://www.redalyc.org/journal/2913/291365765005/movil 10.25100/iyc.v22i2.8846 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.2 Vol.22 |
| title | Luminescence at low temperature in pure ZnO phosphors |
| topic | Ingeniería ZnO Phonons Excitons Photoluminescence (PL) |
| url | https://www.redalyc.org/articulo.oa?id=291365765005 https://www.redalyc.org/journal/2913/291365765005/ https://www.redalyc.org/journal/2913/291365765005/html/ https://www.redalyc.org/journal/2913/291365765005/291365765005.epub https://www.redalyc.org/journal/2913/291365765005/movil |