Site‐Engineering for Controlling Multiple‐Excitation and Emission in Eu<sup>2+</sup>‐Activated CaSrSiO<sub>4</sub> Phosphors in Marine Fisheries

Liu, Shuifu; Wen, Dawei; Du, Rongkai; Jiang, Chunyan; Li, Junhao; Zhou, Lei; Мolokeev, Maxim S.; Wu, Mingmei

doi:10.1002/adom.202203151

Advanced Optical Materials

2023

DOI: 10.1002/adom.202203151

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Site‐Engineering for Controlling Multiple‐Excitation and Emission in Eu²⁺‐Activated CaSrSiO₄ Phosphors in Marine Fisheries

Shuifu Liu

Dawei Wen

Rongkai Du

et al.

Abstract: Figure 5. a) Light sensitivity spectra of squid, tuna, pointhead flounder, cod, and masked greenling, as well as the emission spectra of CSO-CH phosphor at 350, 395, and 465 nm excitation. b) LEDs fabricated by CSO-CH phosphor. c) Schematic diagram of CSO-CH phosphor applied to the fish-attracting lamp.

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Cited by 9 publications

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Achieving Ultra‐Broadband Sunlight‐Like Emission in Single‐Phase Phosphors: The Interplay of Structure and Luminescence

Liu,

Li,

Qin

et al. 2024

Advanced Materials

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The quest for artificial light sources that mimic sunlight's spectral characteristics has been a long‐standing endeavor, particularly for applications in anticounterfeiting, agriculture, and color hue detection. Conventional sunlight simulators, such as xenon lamps, are often cost‐prohibitive and bulky, limiting their adoption. In this regard, the development of a series of single‐phase phosphors Ca9LiMg1‐xAl2x/3(PO4)7:0.1Eu2+ (x = 0‐0.75) with sunlight‐like emission described in this work holds immense promise as a compact and economical light source alternative. The phosphors have been obtained by an original heterovalent substitution method and emit a broad spectrum that encompasses the entire visible region, spanning from violet to deep red. Notably, the phosphor with x = 0.5 exhibits an impressive full width at half maximum of 330 nm. A synergistic interplay of experimental investigations and density‐functional theory calculations unveils the underlying mechanism behind sunlight‐like emission. It is attributed to the local structural perturbations introduced by the heterovalent substitution of Al3+ for Mg2+, leading to a varied distribution of Eu2+ within the lattice. Subsequent characterization of a series of organic dyes combining absorption spectroscopy with convolutional neural network analysis convincingly demonstrates the potential of this phosphor in portable photodetection devices. Broad‐spectrum light source testing empowers our model to precisely differentiate dye patterns. This points to the phosphor being ideal for mimicking sunlight. And beyond this demonstrated application, we envision the phosphor's utility in other relevant domains, including visible light communication and smart agriculture. These findings not only enrich our understanding of luminescent materials design but also pave the way for advancements in various application areas.This article is protected by copyright. All rights reserved

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Achieving Ultra‐Broadband Sunlight‐Like Emission in Single‐Phase Phosphors: The Interplay of Structure and Luminescence

Liu,

Li,

Qin

et al. 2024

Advanced Materials

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Synergistic Mechanoluminescence and Mechanochromism Via Triboelectrification‐Induced Eu³⁺/Eu²⁺ Redox Shuttle

Du,

He,

Xiao

et al. 2024

Laser & Photonics Reviews

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Materials capable of simultaneously achieving both mechanoluminescence (ML) and luminescent mechanochromism (L‐MC) hold great promise in smart stimuli‐responsive applications. However, single‐phase and single‐doped inorganic ML materials with pronounced L‐MC behavior are exceptionally rare because of their single luminescent center. This study investigates a unique L‐MC phenomenon in a series of novel triboelectrification‐induced ML materials, Sr5(PO4)3X:Eu3+ (X = F, Cl, Br). These materials exhibit the in situ ionic valence state transition and excitation behaviors of the Eu3+‐Eu2+ ion pair by utilizing the inherent properties of triboelectrification and cause significant differences in the emission spectra during the photoluminescence and ML process. The redox reactions of Eu ions in the ML process are influenced by the synergistic action of the Eu3+‐Eu2+ redox shuttle (suitable redox potential), triboelectrification (driving force), and Sr ion vacancies (catalysts). Hence, this study presents direct experimental evidence for the underlying mechanism of ML and advances the development and applications of triboelectrification‐induced ML materials.

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Characterization and Investigation of the UCPL, Photoluminescence, and Thermoluminescence Properties of Neodymium-Doped Silicates

Pali,

Khan,

Sahu

et al. 2024

Braz J Phys

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Site‐Engineering for Controlling Multiple‐Excitation and Emission in Eu²⁺‐Activated CaSrSiO₄ Phosphors in Marine Fisheries

Cited by 9 publications

References 44 publications

Achieving Ultra‐Broadband Sunlight‐Like Emission in Single‐Phase Phosphors: The Interplay of Structure and Luminescence

Achieving Ultra‐Broadband Sunlight‐Like Emission in Single‐Phase Phosphors: The Interplay of Structure and Luminescence

Synergistic Mechanoluminescence and Mechanochromism Via Triboelectrification‐Induced Eu³⁺/Eu²⁺ Redox Shuttle

Characterization and Investigation of the UCPL, Photoluminescence, and Thermoluminescence Properties of Neodymium-Doped Silicates

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Site‐Engineering for Controlling Multiple‐Excitation and Emission in Eu2+‐Activated CaSrSiO4 Phosphors in Marine Fisheries

Cited by 9 publications

References 44 publications

Achieving Ultra‐Broadband Sunlight‐Like Emission in Single‐Phase Phosphors: The Interplay of Structure and Luminescence

Achieving Ultra‐Broadband Sunlight‐Like Emission in Single‐Phase Phosphors: The Interplay of Structure and Luminescence

Synergistic Mechanoluminescence and Mechanochromism Via Triboelectrification‐Induced Eu3+/Eu2+ Redox Shuttle

Characterization and Investigation of the UCPL, Photoluminescence, and Thermoluminescence Properties of Neodymium-Doped Silicates

Contact Info

Product

Resources

About

Site‐Engineering for Controlling Multiple‐Excitation and Emission in Eu²⁺‐Activated CaSrSiO₄ Phosphors in Marine Fisheries

Synergistic Mechanoluminescence and Mechanochromism Via Triboelectrification‐Induced Eu³⁺/Eu²⁺ Redox Shuttle