Luminescence and energy transfer of Mn2+ co-doped SrSi2O2N2:Eu2+ green-emitting phosphors
| 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 | Zeng, J. | en |
| dc.date.accessioned | 2015-11-24T17:35:28Z | |
| dc.date.available | 2015-11-24T17:35:28Z | |
| dc.identifier.issn | 0921-5107 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/14129 | |
| dc.rights | Default Licence | - |
| dc.subject | srsi2o2n2:eu2+ | en |
| dc.subject | mn2+ | en |
| dc.subject | phosphors | en |
| dc.subject | energy transfer | en |
| dc.subject | photoluminescence | en |
| dc.subject | led conversion phosphors | en |
| dc.subject | white leds | en |
| dc.subject | photoluminescence | en |
| dc.subject | oxynitride | en |
| dc.subject | sr | en |
| dc.subject | ba | en |
| dc.title | Luminescence and energy transfer of Mn2+ co-doped SrSi2O2N2:Eu2+ green-emitting phosphors | en |
| heal.abstract | Eu2+ and Mn2+ co-doped SrSi2O2N2 green-phosphors, with promising luminescent properties (examined by their powder diffuse reflection, photoluminescence excitation and emission spectra) suitable for UV converted white LEDs, were produced by high temperature solid-state reaction method. The produced materials exhibited intense broad absorption bands at 220-500nm and a broad emission band centered at ca. 530 nm, attributed to 4f-5d transitions of Eu2+. The emission intensity of Eu2+ ions was greatly enhanced by introducing Mn2+ ions into SrSi2O2N2:Eu2+ due to the energy transfer from Mn2+ to Eu2+. The energy transfer probability from Mn2+ to Eu2+ depends strongly on the Mn2+ concentration, which is maximized at a Mn2+ concentration of 3 mol%. It drastically decreases for higher concentrations. The results indicated that SrSi2O2N2:Eu2+, Mn2+ is a promising green-emitting phosphor for white-light emitting diodes with near-UV LED chips. (C) 2009 Elsevier B.V. All rights reserved. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | DOI 10.1016/j.mseb.2009.06.005 | - |
| heal.identifier.secondary | <Go to ISI>://000269474800003 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0921510709002724/1-s2.0-S0921510709002724-main.pdf?_tid=5b11ba9710fc4678eface1922e23df4b&acdnat=1339492598_72a76d19d9c18ec85d0f62cd23a314dd | - |
| heal.journalName | Materials Science and Engineering B-Advanced Functional Solid-State Materials | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2009 | - |
| 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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