New luminescent rare earth activated oxynitridosilicates and oxynitridogermanates with the apatite structure
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Institut de Ciència de Materials de Barcelona [ICMAB] | |
| dc.contributor.author | THOMAS, Sébastien | |
| hal.structure.identifier | Institut de Ciència de Materials de Barcelona [ICMAB] | |
| dc.contributor.author | ORÓ-SOLÉ, Judith | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GLORIEUX, Benoit | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | JUBERA, Veronique | |
| hal.structure.identifier | Centre de Recherches d'Aubervilliers | |
| dc.contributor.author | BUISSETTE, Valérie | |
| hal.structure.identifier | Centre de Recherches d'Aubervilliers | |
| dc.contributor.author | LE MERCIER, Thierry | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GARCIA, Alain | |
| hal.structure.identifier | Institut de Ciència de Materials de Barcelona [ICMAB] | |
| dc.contributor.author | FUERTES, Amparo | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0959-9428 | |
| dc.description.abstractEn | New luminescent oxynitrides based on the apatite structure doped with Eu2+ and Ce3+ have been prepared by ammonolysis of oxysilicate or oxygermanate precursors. The host compounds have the general formula La10−xSrx(Si/Ge)6O27−x/2−3y/2Ny. When doped with divalent europium or trivalent cerium they present blue, green, yellowish green or orange luminescence under UV/blue excitation. Remarkable long wavelength emissions centred beyond 500 nm are observed for the Ce3+ activated oxynitridosilicates and oxynitridogermanates, with compositions La8.9Ce0.1SrSi6N0.37O25.95, La8.9Ce0.1SrSi6N1.06O24.91 (λem = 545 nm) and La9.9Ce0.1Ge6N2.46O23.31 (λem = 590 nm). The treatment of precursor oxides with the required cationic ratios in NH3 gas was used as a convenient general method to prepare the oxynitride materials at moderate temperatures. This allowed decreasing the nitriding temperature from 1600-1400 °C to 1050-600 °C with respect to the method generally used for the synthesis of luminescent (oxy)nitride silicates, the solid state reaction between oxides, nitrides and carbonates under a N2 or N2-H2 flow. | |
| dc.language.iso | en | |
| dc.publisher | Royal Society of Chemistry | |
| dc.subject.en | Luminescent materials | |
| dc.subject.en | Oxynitrides | |
| dc.subject.en | Rare earth | |
| dc.title.en | New luminescent rare earth activated oxynitridosilicates and oxynitridogermanates with the apatite structure | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1039/C2JM35168D | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Materials Chemistry | |
| bordeaux.page | 23913-23920 | |
| bordeaux.volume | 22 | |
| bordeaux.issue | 45 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00763835 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00763835v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Materials%20Chemistry&rft.date=2012&rft.volume=22&rft.issue=45&rft.spage=23913-23920&rft.epage=23913-23920&rft.eissn=0959-9428&rft.issn=0959-9428&rft.au=THOMAS,%20S%C3%A9bastien&OR%C3%93-SOL%C3%89,%20Judith&GLORIEUX,%20Benoit&JUBERA,%20Veronique&BUISSETTE,%20Val%C3%A9rie&rft.genre=article |
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