| Autor: |
Je Hong Park, Tae Wan Kim, Jong Su Kim, Sunghoon Lee, Hong Lee Park |
| Rok vydání: |
2007 |
| Předmět: |
|
| Zdroj: |
Solid State Phenomena. 128:179-184 |
| ISSN: |
1662-9779 |
| DOI: |
10.4028/www.scientific.net/ssp.128.179 |
| Popis: |
Spray pyrolysis was used to prepare ZnS:Mn2+ yellow nanophosphor. As an increase in firing temperature for spray pyrolysis, more nanoparticles of a hexagonal phase were formed together with these of the cubic structure. The optimized emission intensity was observed when the nanophosphor was fired at 900 oC after using a spraying solution of 3.5 pH. The particle size ranged from 60 nm to 400 nm. The ZnS:Mn2+ nanophosphor showed a redshift of about 10 nm in the emission spectrum compared to the microphosphor synthesized by solid-state reaction. The temperature-dependence photoluminescence showed different spectroscopic behaviour and displayed a longer decay time than the microphosphor. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
