Cationic substitution induced tuning of photoluminescence in Ba2.94-2xLaxNaxP4O13: 0.06Eu phosphors for WLEDs.
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| Title: | Cationic substitution induced tuning of photoluminescence in Ba2.94-2xLaxNaxP4O13: 0.06Eu phosphors for WLEDs. |
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| Authors: | Wu, Zhan-Chao1 (AUTHOR), Cui, Li-Li1 (AUTHOR), Zhang, Xue1 (AUTHOR), Zhang, Xing-Xing1 (AUTHOR), Liu, Jie1 (AUTHOR) qustliujie@qust.edu.cn, Ma, Li2 (AUTHOR), Wang, Xiao-Jun1,2 (AUTHOR) xwang@georgiasouthern.edu, Zhang, Ji-Lin3 (AUTHOR) |
| Source: | Journal of Alloys & Compounds. Sep2020, Vol. 835, pN.PAG-N.PAG. 1p. |
| Subjects: | Phosphors, Photoluminescence, Electron transitions |
| Abstract: | The cationic substitution of [La3+-Na+ for [Ba2+-Ba2+ pairs in the Eu2+ doped Ba 3 P 4 O 13 (BPO) phosphors is designed to investigate the effect on Eu valence state and photoluminescence properties. Energy dispersive spectroscopy (EDS) analysis demonstrates the successful incorporation of La3+ and Na+ into BPO, forming Ba 2.94-2 x La x Na x P 4 O 13 (BLNPO). Eu3+ ions doped in BLNPO host can only be partly reduced to Eu2+ state under a reducing atmosphere and the reduction mechanism is proposed. BLNPO: Eu exhibits a blue-green broad emission band derived from Eu2+ and a series of sharp emission lines from 570 to 720 nm assigned to the electron transition of 5 D 0 →7 F J (J = 0, 1, 2, 3, 4) of Eu3+. The emission colors of the BLNPO: Eu phosphors can be tuned from blue-green to white and eventually to orange via regulating [La3+-Na+ content. Through this strategy, color-tunable white light emission is successfully achieved and optimized in single-phase BLNPO host, which enables the BLNPO: Eu phosphors to be potential color-tunable phosphor candidates for WLEDs. Image 1 • Ba 2.94-2 x La x Na x P 4 O 13 : 0.06Eu phosphors are prepared by cationic pair substitution. • Eu3+ ions doping in BLNPO matrix are controllably reduced to Eu2+ ions. • The partial reduction is due to the changes of lattice and cation valence state. • The emission color can be tuned from blue-green to white and finally to orange. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 143495984 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Cationic substitution induced tuning of photoluminescence in Ba2.94-2xLaxNaxP4O13: 0.06Eu phosphors for WLEDs. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wu%2C+Zhan-Chao%22">Wu, Zhan-Chao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cui%2C+Li-Li%22">Cui, Li-Li</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xue%22">Zhang, Xue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xing-Xing%22">Zhang, Xing-Xing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jie%22">Liu, Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> qustliujie@qust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Li%22">Ma, Li</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Xiao-Jun%22">Wang, Xiao-Jun</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> xwang@georgiasouthern.edu</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Ji-Lin%22">Zhang, Ji-Lin</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Sep2020, Vol. 835, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Phosphors%22">Phosphors</searchLink><br /><searchLink fieldCode="DE" term="%22Photoluminescence%22">Photoluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+transitions%22">Electron transitions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The cationic substitution of [La3+-Na+ for [Ba2+-Ba2+ pairs in the Eu2+ doped Ba 3 P 4 O 13 (BPO) phosphors is designed to investigate the effect on Eu valence state and photoluminescence properties. Energy dispersive spectroscopy (EDS) analysis demonstrates the successful incorporation of La3+ and Na+ into BPO, forming Ba 2.94-2 x La x Na x P 4 O 13 (BLNPO). Eu3+ ions doped in BLNPO host can only be partly reduced to Eu2+ state under a reducing atmosphere and the reduction mechanism is proposed. BLNPO: Eu exhibits a blue-green broad emission band derived from Eu2+ and a series of sharp emission lines from 570 to 720 nm assigned to the electron transition of 5 D 0 →7 F J (J = 0, 1, 2, 3, 4) of Eu3+. The emission colors of the BLNPO: Eu phosphors can be tuned from blue-green to white and eventually to orange via regulating [La3+-Na+ content. Through this strategy, color-tunable white light emission is successfully achieved and optimized in single-phase BLNPO host, which enables the BLNPO: Eu phosphors to be potential color-tunable phosphor candidates for WLEDs. Image 1 • Ba 2.94-2 x La x Na x P 4 O 13 : 0.06Eu phosphors are prepared by cationic pair substitution. • Eu3+ ions doping in BLNPO matrix are controllably reduced to Eu2+ ions. • The partial reduction is due to the changes of lattice and cation valence state. • The emission color can be tuned from blue-green to white and finally to orange. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jallcom.2020.155109 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Phosphors Type: general – SubjectFull: Photoluminescence Type: general – SubjectFull: Electron transitions Type: general Titles: – TitleFull: Cationic substitution induced tuning of photoluminescence in Ba2.94-2xLaxNaxP4O13: 0.06Eu phosphors for WLEDs. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wu, Zhan-Chao – PersonEntity: Name: NameFull: Cui, Li-Li – PersonEntity: Name: NameFull: Zhang, Xue – PersonEntity: Name: NameFull: Zhang, Xing-Xing – PersonEntity: Name: NameFull: Liu, Jie – PersonEntity: Name: NameFull: Ma, Li – PersonEntity: Name: NameFull: Wang, Xiao-Jun – PersonEntity: Name: NameFull: Zhang, Ji-Lin IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 09 Text: Sep2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 09258388 Numbering: – Type: volume Value: 835 Titles: – TitleFull: Journal of Alloys & Compounds Type: main |
| ResultId | 1 |
