Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Título da fonte: | Repositório Institucional do IPEN |
Texto Completo: | http://repositorio.ipen.br/handle/123456789/29698 |
Resumo: | Recently, rare-earth doped alkaline earth silicates have been researched extensively as a new generation of afterglow phosphors. Compared with the conventional sulphide materials used for this purpose, silicates yield luminescence with longer duration time and higher bright, as well as improved chemical stability and lower cost. In the present work, Dy-doped calcium magnesium silicate phosphors were prepared by joining the methods sol-gel and co precipitation. Silica gel was obtained from sodium silicate solution. Ca, Mg and Dy hydroxides, precipitated from chloride solutions with NaOH, were added to the obtained gel. After washing for removal of Cl- ions, the product was annealed at 1000??C for 2 hours. XRD results confirmed the formation of diopside phase (CaMgSi2O6). The product was later characterized by SEM and luminescence spectroscopy. |
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2019-02-25T13:31:15Z2019-02-25T13:31:15ZJune 17-21, 2018http://repositorio.ipen.br/handle/123456789/29698aguardandoRecently, rare-earth doped alkaline earth silicates have been researched extensively as a new generation of afterglow phosphors. Compared with the conventional sulphide materials used for this purpose, silicates yield luminescence with longer duration time and higher bright, as well as improved chemical stability and lower cost. In the present work, Dy-doped calcium magnesium silicate phosphors were prepared by joining the methods sol-gel and co precipitation. Silica gel was obtained from sodium silicate solution. Ca, Mg and Dy hydroxides, precipitated from chloride solutions with NaOH, were added to the obtained gel. After washing for removal of Cl- ions, the product was annealed at 1000??C for 2 hours. XRD results confirmed the formation of diopside phase (CaMgSi2O6). The product was later characterized by SEM and luminescence spectroscopy.Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2019-02-25T13:31:14Z No. of bitstreams: 1 25486.pdf: 519342 bytes, checksum: 3f1317629aa8b5e9bca3ccecb6406504 (MD5)Made available in DSpace on 2019-02-25T13:31:15Z (GMT). No. of bitstreams: 1 25486.pdf: 519342 bytes, checksum: 3f1317629aa8b5e9bca3ccecb6406504 (MD5)574-583Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterizationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectICC; CBCIFoz do Igua??u, PRMORAIS, VINICIUS R. deLEME, DANIEL de R.YAMAGATA, CHIEKOINTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CER??MICA, 62.info:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN254862018MORAIS, VINICIUS R. deLEME, DANIEL de R.YAMAGATA, CHIEKO19-02Proceedings1274114114177MORAIS, VINICIUS R. DE:12741:720:SLEME, DANIEL DE R.:14114:720:NYAMAGATA, CHIEKO:177:720:NORIGINAL25486.pdf25486.pdfapplication/pdf519342http://repositorio.ipen.br/bitstream/123456789/29698/1/25486.pdf3f1317629aa8b5e9bca3ccecb6406504MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/29698/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/296982019-02-25 13:31:15.046oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102019-02-25T13:31:15Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false |
dc.title.pt_BR.fl_str_mv |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
title |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
spellingShingle |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization MORAIS, VINICIUS R. de |
title_short |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
title_full |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
title_fullStr |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
title_full_unstemmed |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
title_sort |
Preparation of Dy3+-doped calcium magnesium silicate phosphors by a new synthesis method and its luminescence characterization |
author |
MORAIS, VINICIUS R. de |
author_facet |
MORAIS, VINICIUS R. de LEME, DANIEL de R. YAMAGATA, CHIEKO INTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CER??MICA, 62. |
author_role |
author |
author2 |
LEME, DANIEL de R. YAMAGATA, CHIEKO INTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CER??MICA, 62. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
MORAIS, VINICIUS R. de LEME, DANIEL de R. YAMAGATA, CHIEKO INTERNATIONAL CONGRESS ON CERAMICS, 7th; CONGRESSO BRASILEIRO DE CER??MICA, 62. |
description |
Recently, rare-earth doped alkaline earth silicates have been researched extensively as a new generation of afterglow phosphors. Compared with the conventional sulphide materials used for this purpose, silicates yield luminescence with longer duration time and higher bright, as well as improved chemical stability and lower cost. In the present work, Dy-doped calcium magnesium silicate phosphors were prepared by joining the methods sol-gel and co precipitation. Silica gel was obtained from sodium silicate solution. Ca, Mg and Dy hydroxides, precipitated from chloride solutions with NaOH, were added to the obtained gel. After washing for removal of Cl- ions, the product was annealed at 1000??C for 2 hours. XRD results confirmed the formation of diopside phase (CaMgSi2O6). The product was later characterized by SEM and luminescence spectroscopy. |
publishDate |
2019 |
dc.date.evento.pt_BR.fl_str_mv |
June 17-21, 2018 |
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2019-02-25T13:31:15Z |
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2019-02-25T13:31:15Z |
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info:eu-repo/semantics/publishedVersion |
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