Microwave-assisted sol-gel synthesis and photoluminescence characterization of LaPO4 : Eu3+,Li+ nanophosphors
DC Field | Value | Language |
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dc.contributor.author | Li, Wei | - |
dc.contributor.author | Lee, Joonho | - |
dc.date.accessioned | 2021-09-09T05:15:09Z | - |
dc.date.available | 2021-09-09T05:15:09Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2008-08-07 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/122868 | - |
dc.description.abstract | Here, we describe the fast and mass fabrication of monazite lanthanum orthophosphate (LaPO4) nanoparticles via a simple sol-gel method under the assistance of microwave irradiation. The procedure involves formation of homogeneous, transparent, metal-citrate-EDTA gel precursors using both citric acid (CA) and ethylenediamine tetraacetic acid (EDTA) as the complexing agent followed by microwave irradiation, which promotes prompt thermal decomposition of the metal-citrate-EDTA gel precursors to yield the final nanoparticles. Thermogravimetric/differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) were used to characterize the as-synthesized nanoparticles. About 23 g of single monoclinic phase, approximately 100 nm diameter, LaPO4 spherical nanoparticles were readily obtained at 800 degrees C within 0.5 h, and the nanospheres were themselves composed of Ultrafine nanocrystals of a few nanometers in diameter. Furthermore, photoluminescence (PL) characterization of the Li+- and Eu(3+)codoped LaPO4 nanocrystals was carried out. The effects of microwave irradiation temperature and Eu3+ active center concentration, especially the doping concentration of Li+ on the PL properties, were elaborated in detail. Room-temperature photoluminescence (PL) characterization revealed that the optical brightness as well as the intensity ratio of D-5(0)-F-7(1) to D-5(0)-F-7(2) is highly dependent on the Li+ ions concentration. Introduction of 5 mol % Li+ into the crystal structure enhanced the PL emission brightness more than 2-fold, and the Li0.05Eu0.05La0.9PO4 nanophosphor showed the relatively most promising PL performance with the most intense emission. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | THIN-FILM PHOSPHORS | - |
dc.subject | HIGHLY ENHANCED PHOTOLUMINESCENCE | - |
dc.subject | RARE-EARTH PHOSPHATES | - |
dc.subject | LI-DOPED GD2O3-EU3+ | - |
dc.subject | LANTHANIDE ORTHOPHOSPHATE NANOWIRES | - |
dc.subject | LIQUID-PHASE SYNTHESIS | - |
dc.subject | SR-SUBSTITUTED LAPO4 | - |
dc.subject | OPTICAL-PROPERTIES | - |
dc.subject | COMBUSTION SYNTHESIS | - |
dc.subject | LUMINESCENCE PROPERTIES | - |
dc.title | Microwave-assisted sol-gel synthesis and photoluminescence characterization of LaPO4 : Eu3+,Li+ nanophosphors | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Joonho | - |
dc.identifier.doi | 10.1021/jp800101d | - |
dc.identifier.scopusid | 2-s2.0-49649117125 | - |
dc.identifier.wosid | 000258147200013 | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY C, v.112, no.31, pp.11679 - 11684 | - |
dc.relation.isPartOf | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.volume | 112 | - |
dc.citation.number | 31 | - |
dc.citation.startPage | 11679 | - |
dc.citation.endPage | 11684 | - |
dc.type.rims | ART | - |
dc.type.docType | Review | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | THIN-FILM PHOSPHORS | - |
dc.subject.keywordPlus | HIGHLY ENHANCED PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | RARE-EARTH PHOSPHATES | - |
dc.subject.keywordPlus | LI-DOPED GD2O3-EU3+ | - |
dc.subject.keywordPlus | LANTHANIDE ORTHOPHOSPHATE NANOWIRES | - |
dc.subject.keywordPlus | LIQUID-PHASE SYNTHESIS | - |
dc.subject.keywordPlus | SR-SUBSTITUTED LAPO4 | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | COMBUSTION SYNTHESIS | - |
dc.subject.keywordPlus | LUMINESCENCE PROPERTIES | - |
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