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Narrow-band emitting phosphors are required to improve performance of phosphor-converted light-emitting diodes. Here, we found a new narrow-band emitting phosphor Na2Cs2Sr(B9O15)2:Eu2+ using the local structure similarity with a known narrow-band emitting phosphor. In a 2D scatter plot of the structure dissimilarity between the local structures, Sr site in Na2Cs2Sr(B9O15)2 was located near the Ba site of the known narrow-band emitting sulfate phosphor BaSO4:Eu2+ with a distorted local structure. We synthesized Na2Cs2Sr(B9O15)2:Eu2+ and characterized the luminescence properties by microspectroscopy. Na2Cs2Sr(B9O15)2:Eu2+ has a violet luminescence peaked at approximately 417 nm and the narrow full width at half maximum is narrow as 26 nm (1497 cm-1).

This document is the unedited Author's version of a Submitted Work that was subsequently accepted for publication in The Journal of Physical Chemistry Letters, copyright © 2022 American Chemical Society after peer review. To access the final edited and published work see https://doi.org/10.1021/acs.jpclett.2c02889.

権利情報:

• Creative Commons BY Attribution 4.0 International
  Creative Commons BY Attribution 4.0 International

キーワード: phosphor, narrow-band emission, local structure similarity, Eu2+

刊行年月日: 2022-12-29

出版者: American Chemical Society (ACS)

掲載誌:

• Journal of Physical Chemistry Letters (ISSN: 19487185) vol. 13 issue. 51 p. 11878-11882

研究助成金:

• JST JPMJCR19J2 (CREST)

原稿種別: 査読前原稿 (Author's original)

MDR DOI: https://doi.org/10.48505/nims.3867

公開URL: https://doi.org/10.1021/acs.jpclett.2c02889

関連資料:

• is_version_of
• Narrow-Band Emitting Phosphor Na2Cs2Sr(B9O15)2:Eu2+ Discovered from Local Structure Similarity with Sulfate Phosphor (dataset)
• https://pubs.acs.org/doi/10.1021/acs.jpclett.2c02889

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更新時刻: 2024-01-05 22:12:07 +0900

MDRでの公開時刻: 2023-03-08 13:47:43 +0900