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Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu

The hexagonal and monoclinic phase LaPO(4) and LaPO(4):Eu nanostructures have been controllably synthesized by a citrate-induced hydrothermal process at 100 °C. The crystal growth of LaPO(4) nanostructures was investigated, and the phase transformation of nanostructured LaPO(4) was systematically st...

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Autores principales: Wu, An-Ping, Bai, He, Bao, Jin-Rong, Yang, Kui-Suo, Feng, Li-Na, Ma, Yang-Yang, Qiao, Yan, Li, Wen-Xian, Liu, Ying, Zhu, Xiao-Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9088194/
https://www.ncbi.nlm.nih.gov/pubmed/35547889
http://dx.doi.org/10.1039/c8ra07260d
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author Wu, An-Ping
Bai, He
Bao, Jin-Rong
Yang, Kui-Suo
Feng, Li-Na
Ma, Yang-Yang
Qiao, Yan
Li, Wen-Xian
Liu, Ying
Zhu, Xiao-Wei
author_facet Wu, An-Ping
Bai, He
Bao, Jin-Rong
Yang, Kui-Suo
Feng, Li-Na
Ma, Yang-Yang
Qiao, Yan
Li, Wen-Xian
Liu, Ying
Zhu, Xiao-Wei
author_sort Wu, An-Ping
collection PubMed
description The hexagonal and monoclinic phase LaPO(4) and LaPO(4):Eu nanostructures have been controllably synthesized by a citrate-induced hydrothermal process at 100 °C. The crystal growth of LaPO(4) nanostructures was investigated, and the phase transformation of nanostructured LaPO(4) was systematically studied by varying the citrate concentration, pH value and reaction temperature. When 0.8 mmol of citrate was added into the reaction system, the hexagonal phase LaPO(4) transformed into the monoclinic phase. High concentrations of citrate would lead to the formation of hexagonal phase LaPO(4). The photoluminescence properties of the monoclinic phase LaPO(4):Eu prepared using a citrate-induced process demonstrate that the electric dipole transition ((5)D(0) → (7)F(2)) is stronger than the magnetic dipole transition ((5)D(0) → (7)F(1)), which indicated that Eu(3+) is in a site with no inversion center. The strongest emission peak of hexagonal phase LaPO(4):Eu comes from (5)D(0) → (7)F(1). Furthermore, the citrate-induced hexagonal phase LaPO(4):Eu has a stronger emission intensity than the hexagonal phase LaPO(4):Eu prepared not using a citrate-induced process.
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spelling pubmed-90881942022-05-10 Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu Wu, An-Ping Bai, He Bao, Jin-Rong Yang, Kui-Suo Feng, Li-Na Ma, Yang-Yang Qiao, Yan Li, Wen-Xian Liu, Ying Zhu, Xiao-Wei RSC Adv Chemistry The hexagonal and monoclinic phase LaPO(4) and LaPO(4):Eu nanostructures have been controllably synthesized by a citrate-induced hydrothermal process at 100 °C. The crystal growth of LaPO(4) nanostructures was investigated, and the phase transformation of nanostructured LaPO(4) was systematically studied by varying the citrate concentration, pH value and reaction temperature. When 0.8 mmol of citrate was added into the reaction system, the hexagonal phase LaPO(4) transformed into the monoclinic phase. High concentrations of citrate would lead to the formation of hexagonal phase LaPO(4). The photoluminescence properties of the monoclinic phase LaPO(4):Eu prepared using a citrate-induced process demonstrate that the electric dipole transition ((5)D(0) → (7)F(2)) is stronger than the magnetic dipole transition ((5)D(0) → (7)F(1)), which indicated that Eu(3+) is in a site with no inversion center. The strongest emission peak of hexagonal phase LaPO(4):Eu comes from (5)D(0) → (7)F(1). Furthermore, the citrate-induced hexagonal phase LaPO(4):Eu has a stronger emission intensity than the hexagonal phase LaPO(4):Eu prepared not using a citrate-induced process. The Royal Society of Chemistry 2018-10-19 /pmc/articles/PMC9088194/ /pubmed/35547889 http://dx.doi.org/10.1039/c8ra07260d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Wu, An-Ping
Bai, He
Bao, Jin-Rong
Yang, Kui-Suo
Feng, Li-Na
Ma, Yang-Yang
Qiao, Yan
Li, Wen-Xian
Liu, Ying
Zhu, Xiao-Wei
Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu
title Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu
title_full Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu
title_fullStr Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu
title_full_unstemmed Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu
title_short Influence of citrate on phase transformation and photoluminescence properties in LaPO(4) and LaPO(4):Eu
title_sort influence of citrate on phase transformation and photoluminescence properties in lapo(4) and lapo(4):eu
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9088194/
https://www.ncbi.nlm.nih.gov/pubmed/35547889
http://dx.doi.org/10.1039/c8ra07260d
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