Tunable and enhanced mechanoluminescence in LiYGeO4:Tb3+via Bi3+ → Tb3+ energy transfer

Shao, Peishan; Xiong, Puxian; Jiang, Dongliang; Chen, Zhicong; Xiao, Yao; Sun, Yanan; Chen, Dongdan; Yang, Zhongmin

doi:10.1039/d2tc04902c

Cited by 16 publications

(4 citation statements)

References 41 publications

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“…Mechanoluminescence (ML) is the mechanical-photon conversion process of a material under mechanical stimuli such as impact, torsion, stretching, and friction. [1][2][3][4][5][6] In 1605, Bacon first observed the ML phenomenon by scraping sugar. [7] In 1966, Butler discovered the deformation luminescence phenomenon of alkali metal halides.…”

Section: Introductionmentioning

confidence: 99%

“…[29][30][31][32][33][34] By adjusting the host composition and crystal structure, changing the dopant ions and content, activating ion coexistence and growing heterojunctions, improved ML intensity, sensitivity and reduced ML threshold, and full coverage of ML spectrum of ultraviolet-visible-infrared (UV-Vis-IR) light have been realized. [2,29,[35][36][37][38] In short, the research ideas of ML materials are divided into two parts. First, doping luminescent centers in piezoelectric materials and creating suitable defects (e.g.,: Ca 4 Nb 2 O 9 :Pr 3+ , [39] LiNbO 3 :Nd 3+ [40] ) to achieve ML.…”

Section: Introductionmentioning

confidence: 99%

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Realizing Near Infrared Mechanoluminescence Switch in LAGO:Cr Based on Oxygen Vacancy

Wu,

Xiao,

Jiang

et al. 2024

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Mechanoluminescence (ML) materials are featured with the characteristic of “force to light” in response to external stimuli, which have made great progress in artificial intelligence and optical sensing. However, how to effectively enable ML in the material is a daunting challenge. Here, a Lu3Al2Ga3O12:Cr3+ (LAGO: Cr3+) near infrared (NIR) ML material peaked at 706 nm is reported, which successfully realizes the key to unlock ML by the lattice‐engineering strategy Ga3+ substitution for Al3+ to “grow” oxygen vacancy (Ov) defects. Combined with thermoluminescence measurements, the observed ML is due to the formation of defect levels and the ML intensity is proportional to it. It is confirmed by X‐ray photoelectron spectroscopy and electron paramagnetic resonance that such a process is dominated by Ov, which plays a crucial role in turning on ML in this compound. In addition, potential ML emissions from 4T2 and 2E level transitions are discussed from both experimental and theoretical aspects. This study reveals the mechanism of the change in ML behavior after cation substitution, and it may have important implications for the practical application of Ov defect‐regulated turn‐on of ML.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Realizing Near Infrared Mechanoluminescence Switch in LAGO:Cr Based on Oxygen Vacancy

Wu,

Xiao,

Jiang

et al. 2024

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“…[5] Shao et al proposed a way to enhance the ML intensity of Tb 3+ by Bi 3+ →Tb 3+ energy transfer in LiYGeO 4 toward multicolor ML emission. [6] Tu et al reported that (Ca 1-x Sr x ) 8 Mg 3 Al 2 Si 7 O 28 : Eu 2+ can achieve multicolor ML from green to blue by adjusting the Sr 2+ content. [7] However, ion codoping or lattice engineering tuning are too difficult to precisely control in practical applications to achieve the desired emissions.…”

Section: Introductionmentioning

confidence: 99%

“…proposed a way to enhance the ML intensity of Tb 3+ by Bi 3+ →Tb 3+ energy transfer in LiYGeO 4 toward multicolor ML emission. [ 6 ] Tu et al. reported that (Ca 1‐ x Sr x ) 8 Mg 3 Al 2 Si 7 O 28 : Eu 2+ can achieve multicolor ML from green to blue by adjusting the Sr 2+ content.…”

Section: Introductionmentioning

confidence: 99%

Multicolor Mechanoluminescence in Sr₂Ga₂GeO₇: Pr³⁺ for Stress Sensing and Anticounterfeiting

Xiao

Xiong

et al. 2023

Advanced Optical Materials

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Mechanical luminescence (ML) is the conversion of mechanical energy into light energy when a material is subjected to a force. It is challenging to develop ML materials with tunable luminescent properties by single ion doping, which have broad application prospects in the fields of stress sensing and dynamic signature anticounterfeiting. In this study, a Pr3+ doped Sr2Ga2GeO7 tunable ML material is reported. Due to the traps resulting from unequal substitution of Pr3+–Sr2+ in [SrO6] heptahedra, the deep/shallow traps redistribution occurs towards a multicolor ML from red to green. In addition, even after continuous friction sliding force (15 N), the ML intensities can be recovered after ultraviolet pre‐irradiation, indicating that Sr2Ga2GeO7: Pr3+ has excellent ML emission stability. Based on thermoluminescence analysis, potential PersL and ML mechanisms are further elaborated by a lattice engineering (trap regulation) strategy. In all, the development of single‐ion doped multicolor ML materials may have crucial research value and show a variety of potential applications in the fields of anticounterfeiting and information encryption.

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Multicolor Mechanoluminescence From Lu₃Al₂Ga₃O₁₂: Tb, Eu for Stress and Temperature Visual Sensing

Zhou,

Wu,

Xiao

et al. 2024

Advanced Optical Materials

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Mechanoluminescence (ML) refers to the luminescence phenomenon that occurs when a material is under external mechanical stimuli. However, relying solely on stress information to obtain ML signals is prone to test errors in complex test conditions. In this work, a Tb3+/Eu3+‐doped Lu3Al2Ga3O12 multicolor ML material is reported, in which the ML color can be adjusted from white to red (CIE color coordinates: from (x = 0.313, y = 0.3293) to (x = 0.6183, y = 0.379)) by changing the Eu3+ concentration. In addition, LAGO: 0.25% Tb3+ and LAGO: 1.5% Eu3+ are physically mixed at different mass ratios, and the varied stimuli‐responsed emission characteristics of Tb3+ and Eu3+ ions are used to develop a stress and temperature dual sensing device. Stress and temperature information can be further reflected simultaneously through the blue/red emission ratio IR (ITb/IEu). As the temperature increases, the color changes from white to red (CIE color coordinates: from (x = 0.3259, y = 0.306) to (x = 0.4707, y = 0.3625)), and the relative temperature sensitivity (Sr) is as high as 1.209% K−1 at 298 K. This sensing device provides a new idea for potential structural safety monitoring, multi‐modal anti‐counterfeiting technology, etc.

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Tunable and enhanced mechanoluminescence in LiYGeO₄:Tb³⁺via Bi³⁺ → Tb³⁺ energy transfer

Abstract: Mechanoluminescence (ML) materials, which can emit light under external mechanical stimuli, have attracted wide attention in diverse applications such as display, anti-counterfeiting and 3D signature. However, weak ML intensity and...

Cited by 16 publications

References 41 publications

Realizing Near Infrared Mechanoluminescence Switch in LAGO:Cr Based on Oxygen Vacancy

Realizing Near Infrared Mechanoluminescence Switch in LAGO:Cr Based on Oxygen Vacancy

Multicolor Mechanoluminescence in Sr₂Ga₂GeO₇: Pr³⁺ for Stress Sensing and Anticounterfeiting

Multicolor Mechanoluminescence From Lu₃Al₂Ga₃O₁₂: Tb, Eu for Stress and Temperature Visual Sensing

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Tunable and enhanced mechanoluminescence in LiYGeO4:Tb3+via Bi3+ → Tb3+ energy transfer

Abstract: Mechanoluminescence (ML) materials, which can emit light under external mechanical stimuli, have attracted wide attention in diverse applications such as display, anti-counterfeiting and 3D signature. However, weak ML intensity and...

Cited by 16 publications

References 41 publications

Realizing Near Infrared Mechanoluminescence Switch in LAGO:Cr Based on Oxygen Vacancy

Realizing Near Infrared Mechanoluminescence Switch in LAGO:Cr Based on Oxygen Vacancy

Multicolor Mechanoluminescence in Sr2Ga2GeO7: Pr3+ for Stress Sensing and Anticounterfeiting

Multicolor Mechanoluminescence From Lu3Al2Ga3O12: Tb, Eu for Stress and Temperature Visual Sensing

Contact Info

Product

Resources

About

Tunable and enhanced mechanoluminescence in LiYGeO₄:Tb³⁺via Bi³⁺ → Tb³⁺ energy transfer

Multicolor Mechanoluminescence in Sr₂Ga₂GeO₇: Pr³⁺ for Stress Sensing and Anticounterfeiting

Multicolor Mechanoluminescence From Lu₃Al₂Ga₃O₁₂: Tb, Eu for Stress and Temperature Visual Sensing