Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/95890
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dc.contributorDepartment of Applied Physicsen_US
dc.contributorMaterials Research Centreen_US
dc.creatorWu, Xen_US
dc.creatorChung, THen_US
dc.creatorSun, Hen_US
dc.creatorKwok, KWen_US
dc.date.accessioned2022-10-25T04:37:01Z-
dc.date.available2022-10-25T04:37:01Z-
dc.identifier.issn0272-8842en_US
dc.identifier.urihttp://hdl.handle.net/10397/95890-
dc.language.isoenen_US
dc.publisherPergamon Pressen_US
dc.rights© 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.en_US
dc.rights© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.en_US
dc.rightsThe following publication Wu, X., Chung, T. H., Sun, H., & Kwok, K. W. (2016). Tunable photoluminescence properties of Pr3+/Er3+-doped 0.93 Bi0. 5Na0. 5TiO3–0.07 BaTiO3 low-temperature sintered multifunctional ceramics. Ceramics International, 42(8), 9899-9905 is available at https://doi.org/10.1016/j.ceramint.2016.03.089en_US
dc.subjectDoped BNTBTen_US
dc.subjectEnergy transferen_US
dc.subjectFerroelectricsen_US
dc.subjectMultifunctionen_US
dc.subjectPhotoluminescenceen_US
dc.titleTunable photoluminescence properties of Pr3+/Er3+-doped 0.93Bi0.5Na0.5TiO3–0.07BaTiO3 low-temperature sintered multifunctional ceramicsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage9899en_US
dc.identifier.epage9905en_US
dc.identifier.volume42en_US
dc.identifier.issue8en_US
dc.identifier.doi10.1016/j.ceramint.2016.03.089en_US
dcterms.abstractPr3+/Er3+-doped 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramics have been fabricated at a low sintering temperature of 960°C using a sintering aid of Li2CO3. The effects of energy transfer between Pr3+and Er+ on their photoluminescence properties have been investigated. Our results reveal that the down-conversion emissions of Pr3+are weakened and the lifetimes are shortened by the co-doping of Er3+. As a result, when both Pr3+and Er3+are excited simultaneously, with increasing the concentration of Er3+, the green emissions from Er3+increase but the red emissions from Pr3+decrease. Moreover, the emission color of the ceramics can be reversibly changed between red, yellow and yellowish green by using excitation sources of different wavelengths. Strong up-conversion green emissions with short lifetimes arisen from Er3+ have also been observed for the ceramics under the excitation of 980 nm. Owing to the Li2CO3 sintering aid, the low-temperature sintered ceramics also exhibit reasonably good ferroelectric and piezoelectric properties, and hence should be promising for multifunctional applications such as electro-optical coupling devices.en_US
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationCeramics international, June 2016, v. 42, no. 8, p. 9899-9905en_US
dcterms.isPartOfCeramics internationalen_US
dcterms.issued2016-06-
dc.identifier.scopus2-s2.0-84977943214-
dc.identifier.eissn1873-3956en_US
dc.description.validate202210 bckwen_US
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberAP-0779-
dc.description.fundingSourceRGCen_US
dc.description.fundingSourceOthersen_US
dc.description.fundingTextThe Hong Kong Polytechnic Universityen_US
dc.description.pubStatusPublisheden_US
dc.identifier.OPUS6657991-
dc.description.oaCategoryGreen (AAM)en_US
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