Trap-regulated highly efficient mechanoluminescence and persistent mechanoluminescence of Ca2MgSi2O7:Eu2+

Yan, Yingjuan; Fang, Shaofan; Li, Yanyan; Xu, Yixuan; Song, Yuxi; Ma, Zhidong; Shi, Yuhang; Zhao, Lei; Wang, Zhaofeng

doi:10.1039/d3tc02030d

Cited by 9 publications

(7 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the HRTEM image of Mg 1.45 Zn 0.55 SnO 4 as shown in Figure d, a crystal lattice fringe is clearly observed. The interplanar distance of 0.2604 nm is in good agreement with (311) plane. , …”

Section: Resultssupporting

confidence: 67%

See 1 more Smart Citation

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Zhao,

Li,

Xiang

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

Traditional information encryption materials that rely on fluorescent/phosphorescent molecules are facing an increasing risk of counterfeiting or tampering due to their static reading mode and advances in counterfeiting technology. In this study, a series of Mg2–x Zn x SnO4 (x = 0.55, 0.6, 0.65, 0.7 0.75, 0.8) that realizes the writing, reading, and erasing of dynamic information is developed. When heated to 90 °C, the materials exhibit a variety of dynamic emission changes with the concentration of Zn2+ ions. As the doping concentration increased, the ratio of the shallow trap to deep trap changed from 7.77 to 20.86. When x = 0.55, the proportion of deep traps is relatively large, resulting in a higher temperature and longer time required to read the information. When x = 0.80, the proportion of shallow traps is larger and the encrypted information is easier to read. Based on the above features, encryption binary codes device was designed, displaying dynamic writing, reading, and erasing of information under daylight and heating conditions. Accordingly, this work provides reliable guidance on advanced dynamic information encryption.

show abstract

Section: Resultssupporting

confidence: 67%

“…The interplanar distance of 0.2604 nm is in good agreement with (311) plane. 34,42 Whole pattern survey of XPS measurement on the Mg 1.45 Zn 0.55 SnO 4 sample is shown in Figure 3a. The spectra display that the characteristic peaks correspond to Mg 2p, Zn 2p, Sn 3d, and O 1s elements.…”

Section: Resultsmentioning

confidence: 99%

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Zhao,

Li,

Xiang

et al. 2024

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…Our investigation shows that lower concentrations of active ions tend to increase structural rigidity and lead to wider main band gaps, which helps develop phosphors with stronger thermal stability. 42–44 In addition to this, another key factor affecting thermal stability is the thermal quenching performance of the material. The thermal quenching performance of MGO:Cr 3+ can be illustrated by the configuration diagram.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous NIR photoluminescence and mechanoluminescence from Cr³⁺ activated MgGa₂O₄ phosphors with multifunctions for optical sensing

Wang,

Pan,

Wang

et al. 2024

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

“…Pr 3+ , being a typical lanthanide ion, may extend the residual glow time by adjusting the trap depth. Carriers released from deeper traps combine with holes through tunneling, leading to optimized Cr 3+ NIR luminescence. ,, …”

Section: Resultsmentioning

confidence: 99%

“…These experimental findings offer valuable data to support our further investigation into the ML mechanism of the materials. 37 3.5. ML Mechanism and Application.…”

Section: Persl and MLmentioning

confidence: 99%

Multi-Mode Luminescence in Smart Near-Infrared Cr³⁺/Pr³⁺ Codoped SrGa₁₂O₁₉ Phosphors Induced by Three Distinct Excitation Mechanisms

Wang,

Lin,

Yue

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Near-infrared (NIR) phosphors have emerged as novel luminescent materials across various fields due to their unique advantages of high penetration and invisibility. However, there is currently a lack of intelligent NIR phosphors that can achieve multimode stimuli responsive for sensing applications. In this study, we employed a high-temperature solid-phase reaction to incorporate Pr 3+ into Cr 3+ -doped gallate magnetite SrGa 12 O 19 phosphor, yielding a multimode luminescent intelligent NIR phosphor. Also, due to the inherent cation vacancies and defects in the matrix, the material not only exhibits brighter photoluminescence but also exhibits distinct NIR mechanoluminescence at a lower load. Notably, Pr 3+ -doped SrGa 12 O 19 :Cr 3+ also demonstrates extended persistent luminescence and thermoluminescence effects. Finally, we combined the phosphor with the blue LED chip to develop a new multifunctional NIR pc-LED. Leveraging NIR's unique penetrating ability, it can persist in biological tissues for prolonged periods, enabling optical inspection and offering a novel approach to password protection for anticounterfeiting measures. This intelligent NIR phosphor solution significantly expands the application potential of NIR light in food quality assessment and analysis.

show abstract

Trap-regulated highly efficient mechanoluminescence and persistent mechanoluminescence of Ca₂MgSi₂O₇:Eu²⁺

Abstract: Mechanoluminescence (ML) materials have shown promising applications in visualized mechanics sensing, imaging, and real-time monitoring, because of the unique mechanics-optics conversion characteristics. However, most ML materials exhibit weak intensity and...

Cited by 9 publications

References 63 publications

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Simultaneous NIR photoluminescence and mechanoluminescence from Cr³⁺ activated MgGa₂O₄ phosphors with multifunctions for optical sensing

Multi-Mode Luminescence in Smart Near-Infrared Cr³⁺/Pr³⁺ Codoped SrGa₁₂O₁₉ Phosphors Induced by Three Distinct Excitation Mechanisms

Contact Info

Product

Resources

About

Trap-regulated highly efficient mechanoluminescence and persistent mechanoluminescence of Ca2MgSi2O7:Eu2+

Abstract: Mechanoluminescence (ML) materials have shown promising applications in visualized mechanics sensing, imaging, and real-time monitoring, because of the unique mechanics-optics conversion characteristics. However, most ML materials exhibit weak intensity and...

Cited by 9 publications

References 63 publications

Trap Depth Engineering from Persistent Luminescence Phosphors Mg2-xZnxSnO4 for Dynamic Optical Information Encryption Application

Trap Depth Engineering from Persistent Luminescence Phosphors Mg2-xZnxSnO4 for Dynamic Optical Information Encryption Application

Simultaneous NIR photoluminescence and mechanoluminescence from Cr3+ activated MgGa2O4 phosphors with multifunctions for optical sensing

Multi-Mode Luminescence in Smart Near-Infrared Cr3+/Pr3+ Codoped SrGa12O19 Phosphors Induced by Three Distinct Excitation Mechanisms

Contact Info

Product

Resources

About

Trap-regulated highly efficient mechanoluminescence and persistent mechanoluminescence of Ca₂MgSi₂O₇:Eu²⁺

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Trap Depth Engineering from Persistent Luminescence Phosphors Mg_2-_xZn_xSnO₄ for Dynamic Optical Information Encryption Application

Simultaneous NIR photoluminescence and mechanoluminescence from Cr³⁺ activated MgGa₂O₄ phosphors with multifunctions for optical sensing

Multi-Mode Luminescence in Smart Near-Infrared Cr³⁺/Pr³⁺ Codoped SrGa₁₂O₁₉ Phosphors Induced by Three Distinct Excitation Mechanisms