Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/37269 |
Resumo: | In this paper, the blue-light-emitting Sr2CeO4 phosphor powders were prepared by hydrothermal combustion reactions and a subsequent sintering process. During the process, the mixed urea and glycine were both used as leavening agent and fuel. The particle crystallization, surface morphology as well as the luminescence intensities of the Sr2CeO4 phosphor powders were effectively improved by adjusting the amount of glycine and post-sintering temperatures. The Sr2CeO4 phosphor exhibited strong crystallization and well-distributed spherical particle after optimization. Moreover, the intense blue-light emission band with the maximum at 468 nm in the range of 400–600 nm was observed as excited with ultraviolet light 277 nm. In particular, after the precursors were heat-treated at 1100 °C, the samples could be well-excited around 350 nm. The excitation bands were ascribed to the charge transfer from O to Ce, and the enlarged excitation range may facilitate its uses in optoelectronic fields. |
id |
RCAP_c801659301f0f21d885dc49e2d11d784 |
---|---|
oai_identifier_str |
oai:ria.ua.pt:10773/37269 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powdersA. OxidesA. Optical materialsB. LuminescenceD. PhosphorIn this paper, the blue-light-emitting Sr2CeO4 phosphor powders were prepared by hydrothermal combustion reactions and a subsequent sintering process. During the process, the mixed urea and glycine were both used as leavening agent and fuel. The particle crystallization, surface morphology as well as the luminescence intensities of the Sr2CeO4 phosphor powders were effectively improved by adjusting the amount of glycine and post-sintering temperatures. The Sr2CeO4 phosphor exhibited strong crystallization and well-distributed spherical particle after optimization. Moreover, the intense blue-light emission band with the maximum at 468 nm in the range of 400–600 nm was observed as excited with ultraviolet light 277 nm. In particular, after the precursors were heat-treated at 1100 °C, the samples could be well-excited around 350 nm. The excitation bands were ascribed to the charge transfer from O to Ce, and the enlarged excitation range may facilitate its uses in optoelectronic fields.Elsevier2023-04-21T10:31:51Z2019-04-01T00:00:00Z2019-04info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37269eng0025-540810.1016/j.materresbull.2018.12.018Yang, YanfeiZuo, XiangyuShi, ShikaoLi, JibiaoWang, JiyeGeng, LinaFu, Liansheinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:11:52Zoai:ria.ua.pt:10773/37269Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:52.805206Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
title |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
spellingShingle |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders Yang, Yanfei A. Oxides A. Optical materials B. Luminescence D. Phosphor |
title_short |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
title_full |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
title_fullStr |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
title_full_unstemmed |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
title_sort |
Hydrothermal combustion synthesis and characterization of Sr2CeO4 phosphor powders |
author |
Yang, Yanfei |
author_facet |
Yang, Yanfei Zuo, Xiangyu Shi, Shikao Li, Jibiao Wang, Jiye Geng, Lina Fu, Lianshe |
author_role |
author |
author2 |
Zuo, Xiangyu Shi, Shikao Li, Jibiao Wang, Jiye Geng, Lina Fu, Lianshe |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Yang, Yanfei Zuo, Xiangyu Shi, Shikao Li, Jibiao Wang, Jiye Geng, Lina Fu, Lianshe |
dc.subject.por.fl_str_mv |
A. Oxides A. Optical materials B. Luminescence D. Phosphor |
topic |
A. Oxides A. Optical materials B. Luminescence D. Phosphor |
description |
In this paper, the blue-light-emitting Sr2CeO4 phosphor powders were prepared by hydrothermal combustion reactions and a subsequent sintering process. During the process, the mixed urea and glycine were both used as leavening agent and fuel. The particle crystallization, surface morphology as well as the luminescence intensities of the Sr2CeO4 phosphor powders were effectively improved by adjusting the amount of glycine and post-sintering temperatures. The Sr2CeO4 phosphor exhibited strong crystallization and well-distributed spherical particle after optimization. Moreover, the intense blue-light emission band with the maximum at 468 nm in the range of 400–600 nm was observed as excited with ultraviolet light 277 nm. In particular, after the precursors were heat-treated at 1100 °C, the samples could be well-excited around 350 nm. The excitation bands were ascribed to the charge transfer from O to Ce, and the enlarged excitation range may facilitate its uses in optoelectronic fields. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-01T00:00:00Z 2019-04 2023-04-21T10:31:51Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/37269 |
url |
http://hdl.handle.net/10773/37269 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0025-5408 10.1016/j.materresbull.2018.12.018 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799137732568547328 |