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author：

Li, H. (Li, H..) [1] | Niu, Y. (Niu, Y..) [2] | Liu, C. (Liu, C..) [3] | Jiang, H. (Jiang, H..) [4] | Li, J. (Li, J..) [5] | Wu, J. (Wu, J..) [6] | Huang, S. (Huang, S..) [7] (Scholars：黄淑萍) | Zhang, H. (Zhang, H..) [8] | Zhu, J. (Zhu, J..) [9]

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Scopus

Abstract：

Eu3+-activated　red-emitting　inorganic　phosphors　have　been　favored　highly　for　their　classical　5D0→7FJ　(J　=　0,　1,　2,　3,　4)　emissions.　However,　the　fatal　drawbacks　of　poor　luminous　efficacy　and　weak　5D0→7F4　transition　persist,　resulting　in　the　ongoing　challenge　of　achieving　far-red　emission.　This　research　reports　series　of　highly　efficient　far-red　phosphors　LnTeBO5　(Ln　=　La3+,　Y3+,　Gd3+):Eu3+　with　anomalously　strong　5D0→7F4　transition,　resulting　from　the　distorted　square　antiprism　[Ln/EuO8].　Both　the　luminous　efficacy　and　thermal　stability　can　be　greatly　enhanced　via　the　simple　composition　variation.　[Ln/EuO8]　square　antiprism-triggered　5D0→7F2,4　transitions　are　elucidated　in　depth,　acquiring　ultra-high　luminous　efficacy　(IQE　=　95%,　EQE　=　40%,　and　AE　=　42%)　and　near-zero　thermal　quenching　(99%@150°C　and　98%@200°C).　Subsequently,　the　versatile　utilizations　in　indoor　lighting,　plant　growth　lighting,　and　security　ink　are　illustrated.　This　finding　establishes　a　deep　understanding　for　constructing　high-quality　far-red　phosphors　via　the　Eu3+-centered　structural　units　of　square　antiprism.　©　2024　Wiley-VCH　GmbH.

Keyword：

borotellurate compositional engineering far-red emission security ink solid-state lighting

Community：

  • [ 1 ] [Li H.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China
  • [ 2 ] [Niu Y.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China
  • [ 3 ] [Liu C.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China
  • [ 4 ] [Jiang H.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China
  • [ 5 ] [Li J.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China
  • [ 6 ] [Wu J.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Huang S.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Zhang H.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China
  • [ 9 ] [Zhu J.]Yunnan Key Laboratory of Electromagnetic Materials and Devices, National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory of Carbon Neutrality and Green Low-carbon Technologies, Innovation Center of Carbon Neutrality, School of Materials and Energy, Yunnan University, Kunming, 650091, China

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Source ：

Laser and Photonics Reviews

ISSN： 1863-8880

Year： 2024

Issue： 12

Volume： 18

9 . 8 0 0

JCR@2023

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