Synthesis of BaSi2O2N2:Ce3(+),Eu2+ Phosphors and Determination of their Luminescence Properties
| dc.contributor.author | Song, X. F. | en |
| dc.contributor.author | Fu, R. L. | en |
| dc.contributor.author | Agathopoulos, S. | en |
| dc.contributor.author | He, H. | en |
| dc.contributor.author | Zhao, X. R. | en |
| dc.contributor.author | Yu, X. D. | en |
| dc.date.accessioned | 2015-11-24T17:39:11Z | |
| dc.date.available | 2015-11-24T17:39:11Z | |
| dc.identifier.issn | 0002-7820 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/14607 | |
| dc.rights | Default Licence | - |
| dc.subject | led conversion phosphors | en |
| dc.subject | light-emitting diode | en |
| dc.subject | energy-transfer | en |
| dc.subject | white leds | en |
| dc.subject | fluorescence | en |
| dc.subject | oxynitride | en |
| dc.subject | eu2+ | en |
| dc.subject | sr | en |
| dc.subject | ba | en |
| dc.subject | photoluminescence | en |
| dc.title | Synthesis of BaSi2O2N2:Ce3(+),Eu2+ Phosphors and Determination of their Luminescence Properties | en |
| heal.abstract | BaSi2O2N2:Ce3+,Eu2+ phosphors were successfully synthesized via the solid-state reaction method. Their luminescence properties were experimentally investigated and qualify them for further consideration as components in white light-emitting diodes. In particular, BaSi2O2N2:Eu2+ phosphors have an efficient bluish-green emission band that peaks at 490 nm. Ce3+-doped BaSi2O2N2 showed a bright emission band at 390 nm. A red shift tuning capability of emission bands was achieved by increasing the Eu2+ or Ce3+ contents. Measurements of the intensity of emission spectra suggested a concentration quenching effect for both Eu2+ and Ce3+. Analysis of the experimental results suggests that the enhancement of emission intensity in the produced codoped BaSi2O2N2:Ce3+,Eu2+ phosphors is due to resonance-type energy transfer from Ce3+ to Eu2+ ions, which is predominantly governed by dipole-dipole interaction mechanism. The efficiency of energy transfer was calculated and the critical distance of energy transfer between Ce3+ and Eu2+ was determined as similar to 25 A. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | DOI 10.1111/j.1551-2916.2010.04092.x | - |
| heal.identifier.secondary | <Go to ISI>://000286830100036 | - |
| heal.identifier.secondary | http://onlinelibrary.wiley.com/store/10.1111/j.1551-2916.2010.04092.x/asset/j.1551-2916.2010.04092.x.pdf?v=1&t=h3cr78kr&s=3f7ca31fe5740203bf4b7b3e2a095ba5b05caf3c | - |
| heal.journalName | Journal of the American Ceramic Society | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2011 | - |
| heal.publisher | The American Ceramic Society | 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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