Cost-effective synthesis of Ca-α-sialon:Eu2+ phosphors by a direct silicon nitridation route
| dc.contributor.author | Yang X. F., Liu C., Yang L. X., Xu X., Agathopoulos S. | en |
| dc.date.accessioned | 2015-11-24T17:32:51Z | |
| dc.date.available | 2015-11-24T17:32:51Z | |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/13786 | |
| dc.rights | Default Licence | - |
| dc.subject | A. Sintering | en |
| dc.subject | C. Optical properties | en |
| dc.subject | D. Nitrides | en |
| dc.subject | D. Sialon | en |
| dc.title | Cost-effective synthesis of Ca-α-sialon:Eu2+ phosphors by a direct silicon nitridation route | en |
| heal.abstract | The direct silicon nitridation method was used to synthesize Ca-a-sialon:Eu2+ phosphors. From a low cost CaCO3 AlF3 Si mixture, pure asialon phase was produced at a low temperature of 1250 8C. The crystallinity of the obtained phosphors can be markedly improved by increasing the firing temperature or post-annealing. Solid gas reactions occur easily, according to thermodynamic analysis, leading to loss of silicon and enhancing the replacement of Si N bonds by Al N bonds. The produced Ca-a-sialon:Eu2+ phosphors feature high purity, uniform and discrete particle morphology with a particle size of 1 2 mm and good luminescence properties with a yellow emission that peaks at 580 nm under n-UVor blue light excitation. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | 10.1016/j.ceramint.2012.03.033 | - |
| heal.identifier.secondary | http://www.sciencedirect.com/science/article/pii/S0272884212002490 | - |
| heal.journalName | Ceramics International | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2012 | - |
| heal.publisher | Elsevier | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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