Photoluminescence of Eu2+ in BaF2-rich fluorohalides and photostimulation after X-ray irradiation
| hal.structure.identifier | Université Ibn Zhor | |
| dc.contributor.author | ES-SAKHI, B. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GARCIA, Alain | |
| hal.structure.identifier | Agfa-Gevaert | |
| dc.contributor.author | STRUYE, L. | |
| hal.structure.identifier | Agfa-Gevaert | |
| dc.contributor.author | WILLEMS, P. | |
| hal.structure.identifier | Agfa-Gevaert | |
| dc.contributor.author | LEBLANS, P. | |
| hal.structure.identifier | Université Ibn Zhor | |
| dc.contributor.author | MOUDDEN, A. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | FOUASSIER, Claude | |
| dc.date.issued | 2003 | |
| dc.identifier.issn | 0921-5107 | |
| dc.description.abstractEn | The luminescence of Eu2+ has been investigated in two families of BaF2-rich fluorohalides, Ba12Cl5(1−x)Br5xF19 (x≤0.8) and Ba7Cl2(1−x)Br2xF12 (x≤0.5). In the two kinds of host lattices, under UV excitation Eu2+ shows an intense blue 5d→4f band emission at 300 K. At low temperature, in addition to the latter, 4f→4f lines are present in the near UV. The efficiency of the photostimulated luminescence (PSL) after X-ray irradiation has been measured and compared with that of BaXF:Eu (X=Cl, Br). High conversion efficiencies have been obtained with compositions Ba12Cl5(1−x)Br5xF19 for stimulation at 532 nm. The presence of bromine is beneficial. For all compositions a high stimulation energy (SE) is needed to excite Eu2+ ions through colour centres. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Photoluminescence | |
| dc.subject.en | Photostimulation | |
| dc.subject.en | Storage phosphors | |
| dc.subject.en | Eu2+-doped barium chlorofluoride | |
| dc.title.en | Photoluminescence of Eu2+ in BaF2-rich fluorohalides and photostimulation after X-ray irradiation | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/S0921-5107(02)00327-6 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Materials Science and Engineering: B | |
| bordeaux.page | 233-239 | |
| bordeaux.volume | 96 | |
| bordeaux.issue | 3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00198554 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00198554v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Science%20and%20Engineering:%20B&rft.date=2003&rft.volume=96&rft.issue=3&rft.spage=233-239&rft.epage=233-239&rft.eissn=0921-5107&rft.issn=0921-5107&rft.au=ES-SAKHI,%20B.&GARCIA,%20Alain&STRUYE,%20L.&WILLEMS,%20P.&LEBLANS,%20P.&rft.genre=article |
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