X-ray induced electron defects in photochromic Ba3MgSi2O8: Eu3+ and isostructural K3Na(SO4)2

Yonezaki, Yoshinori; Yanai, Ryo

doi:10.1016/j.jallcom.2021.160111

Cited by 7 publications

(4 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, we conclude that the oxidation of Eu 2+ is the primary factor contributing to the degradation of luminescence under UV irradiation. [ 7–9 ]…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, we conclude that the oxidation of Eu 2+ is the primary factor contributing to the degradation of luminescence under UV irradiation. [7][8][9] In addition, the luminescence quenching of Eu 2+ induced by UV irradiation was partially restored through thermal treatment in air (Figure 4f; Figure S12, Supporting Information). This observed recovery during treatment in air aligns with the processes of carrier filling and release mediated by defects rather than the Eu 3+ →Eu 2+ transitions, indicating the possibility of an additional mechanism contributing to luminescence quenching.…”

Section: Multicolor Modulation Mechanismsmentioning

confidence: 99%

“…[ 6 ] Recently, it was discovered that the inherent luminescence of Eu 2+ /Eu 3+ offers the unique ability to finely adjust PL properties (intensity and color) via a pre‐irradiation process under a fixed wavelength at different time. For example, in a series of Eu 3+ doped luminescent materials [(Ba,Sr) 2 SiO 4 :Eu 3+,[ 7 ] Ba 3 MgSi 2 O 8 :Eu 3+ , [ 8 ] and Sr 3 SiO 5 :Eu 3+ , [ 9 ] etc], their PL emission intensities of the Eu 3+ and Eu 2+ ions can be dynamically tuned by the UV or X‐ray‐induced redox reactions of Eu 3+ →Eu 2+ , accompanied by the changes in the color of the emitted light from initial red to blue. This inherent tunability of Eu 3+ /Eu 2+ enables the dynamic modulation of multicolor displays, showing potential in optical information storage compared with static color changes.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Unlocking The Inherent Luminescence of Eu²⁺/Eu³⁺ by Light‐Induced Oxidation for Invisible Optical Storage

Zhang,

Li,

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

Color‐tunable luminescent materials are increasingly recognized for their potential applications in high‐security anticounterfeiting and optical storage technologies. However, luminescent materials with high‐contrast photoswitching behavior that change their luminescence properties in response to external stimuli are extremely scarce. In this study, a time‐dependent color‐tunable luminescent material, Na2BaSiO4:Eu2+ (NBSO:Eu), is introduced. This material leverages the inherent luminescence of Eu2+/Eu3+ through a light stimulus. Under 365 nm irradiation, the blue luminescence of Eu2+ gradually degraded over time, reaching a luminescence contrast of up to 88%. This degradation is accompanied by a color change of the emitted light from blue to red (Eu3+). These color changes can be reversibly tuned by alternating light or thermal stimuli. Experimental investigations revealed that the photogenerated Eu3+ ions and defects, acting as killer centers, induced multicolor luminescent switching behavior. Owing to their unique optical properties, NBSO:Eu offers exciting opportunities for designing advanced dynamic anticounterfeiting and invisible optical storage.

show abstract

“…Therefore, we conclude that the oxidation of Eu 2+ is the primary factor contributing to the degradation of luminescence under UV irradiation. [ 7–9 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Multicolor Modulation Mechanismsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Unlocking The Inherent Luminescence of Eu²⁺/Eu³⁺ by Light‐Induced Oxidation for Invisible Optical Storage

Zhang,

Li,

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…Ba 3 MgSi 2 O 8 (BMS) belongs to the glaserite type of silicates. The photochromic and persistent luminescent properties of rare earth ions (Pr 3+ , Eu 3+ ) doped into BMS were reported separately in previous studies. , However, the PersRL and X-ray imaging of BMS have not been investigated yet. Here, we conducted an in-depth and systematic study of the X-ray-induced discoloration, PersRL, and UV-light-induced bleaching properties of Ba 3 MgSi 2 O 8 :Mn 2+ (BMS:Mn) (Figure ).…”

mentioning

confidence: 99%

X-ray-Irradiation-Induced Discoloration and Persistent Radioluminescence for Reversible Dual-Mode Imaging and Detection Applications

Song

Zhao

et al. 2023

ACS Energy Lett.

View full text Add to dashboard Cite

The combination of X-ray-irradiation-induced photochromism and persistent radioluminescence in a single material presents an exciting avenue for multi-functional applications such as optical memory, anti-counterfeiting, and X-ray detection and imaging. However, developing such a material remains a significant challenge. Here, a white Ba3MgSi2O8:Mn2+ photochromic phosphor was prepared, exhibiting a white-to-orange color change (>20 h for bright field) and good persistent radioluminescence emission (>90 min for dark field) in response to X-ray radiation. The photochromic phosphor also demonstrated accelerated bleaching and recovery after 14 min of 254 nm UV light stimulation. This Ba3MgSi2O8:Mn2+-based flexible film displayed simultaneous reversible photochromism and recoverable persistent luminescence, providing dual-mode X-ray imaging and detection capabilities, as well as good reproducibility and read/write erasability. This study suggests that combining X-ray-induced photochromism and persistent radioluminescence in a single material is a promising approach to design advanced photonic materials for information security, cryptography, and smart anti-counterfeiting applications.

show abstract

Dual‐Functional X‐Ray Photochromic Phosphor: High‐Performance Detection and 3D Imaging

Bai,

Xu,

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

This study explores the integration of X‐ray‐induced photochromism and photoluminescence in a single material, offering innovative multi‐mode applications in optical memory, anti‐counterfeiting, and X‐ray detection and imaging. The photochromic phosphor LiAlSi2O6:Sm3+ is synthesized, which undergoes a color change from white to dark green under bright field conditions and displays orange photoluminescence in dark field conditions after X‐ray exposure due to defect formation. The phosphor shows accelerated bleaching and recovery under 473 nm laser stimulation. The distinct X‐ray‐induced color contrast and luminescence intensity modification in LiAlSi2O6:Sm3+ highlight its potential in advanced luminescent material design. Moreover, a LiAlSi2O6:Sm3+‐based flexible film demonstrates “dual‐mode” 3D X‐ray imaging and detection capabilities, paving the way for future X‐ray detecting and imaging device research.

show abstract

X-ray induced electron defects in photochromic Ba3MgSi2O8: Eu3+ and isostructural K3Na(SO4)2

Cited by 7 publications

References 24 publications

Unlocking The Inherent Luminescence of Eu²⁺/Eu³⁺ by Light‐Induced Oxidation for Invisible Optical Storage

Unlocking The Inherent Luminescence of Eu²⁺/Eu³⁺ by Light‐Induced Oxidation for Invisible Optical Storage

X-ray-Irradiation-Induced Discoloration and Persistent Radioluminescence for Reversible Dual-Mode Imaging and Detection Applications

Dual‐Functional X‐Ray Photochromic Phosphor: High‐Performance Detection and 3D Imaging

Contact Info

Product

Resources

About

X-ray induced electron defects in photochromic Ba3MgSi2O8: Eu3+ and isostructural K3Na(SO4)2

Cited by 7 publications

References 24 publications

Unlocking The Inherent Luminescence of Eu2+/Eu3+ by Light‐Induced Oxidation for Invisible Optical Storage

Unlocking The Inherent Luminescence of Eu2+/Eu3+ by Light‐Induced Oxidation for Invisible Optical Storage

X-ray-Irradiation-Induced Discoloration and Persistent Radioluminescence for Reversible Dual-Mode Imaging and Detection Applications

Dual‐Functional X‐Ray Photochromic Phosphor: High‐Performance Detection and 3D Imaging

Contact Info

Product

Resources

About

Unlocking The Inherent Luminescence of Eu²⁺/Eu³⁺ by Light‐Induced Oxidation for Invisible Optical Storage

Unlocking The Inherent Luminescence of Eu²⁺/Eu³⁺ by Light‐Induced Oxidation for Invisible Optical Storage