Russian Physics Journal, Год журнала: 2024, Номер unknown
Опубликована: Сен. 20, 2024
Язык: Английский
Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(10), С. 3654 - 3661
Опубликована: Янв. 1, 2024
The prepared MGO:Cr 3+ phosphor has dual-mode emissions for sensing, including NIR photoluminescence and mechanoluminescence. Moreover, the developed light-emitting device functions of anti-counterfeiting biological tissue penetration.
Язык: Английский
Процитировано
9
Applied Physics Letters, Год журнала: 2024, Номер 124(10)
Опубликована: Март 4, 2024
Mechanoluminescent materials, which are capable of converting some ignored mechanical stimuli like friction, pressure, and distortion into useful photons, gathering increasing attention nowadays, especially considering that a new round energy crisis is sweeping across the globe. However, wavelength mechanoluminescence (ML) reported so far overlaps seriously with solar spectrum, limiting practical applications mechanoluminescent materials to extent. Here, we report ultraviolet-C (UVC) ML from NaYF4:Pr3+ central at ∼250 nm, one shortest wavelengths for ascribed 1S0 → 3F4 transition Pr3+. After being charged by x rays, able emit under stimulation external stress. The presence UVC has been confirmed both spectrometer solar-blind camera. We confirm belongs trap-controlled via thermoluminescence related trap-filling-emptying measurements. With aid density functional theory, discuss possible mechanism NaYF4:Pr3+.
Язык: Английский
Процитировано
6
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(26), С. 33855 - 33864
Опубликована: Июнь 20, 2024
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 intelligent NIR that can achieve multimode stimuli responsive for sensing applications. In this study, we employed high-temperature solid-phase reaction incorporate Pr3+ into Cr3+-doped gallate magnetite SrGa12O19 phosphor, yielding phosphor. Also, the inherent cation vacancies defects in matrix, material not only exhibits brighter photoluminescence but also distinct mechanoluminescence at lower load. Notably, Pr3+-doped SrGa12O19:Cr3+ demonstrates extended persistent luminescence thermoluminescence effects. Finally, combined phosphor with blue LED chip develop new multifunctional pc-LED. Leveraging NIR's penetrating ability, it persist biological tissues prolonged periods, enabling optical inspection offering approach password protection anticounterfeiting measures. This solution significantly expands application potential light food quality assessment analysis.
Язык: Английский
Процитировано
6
Laser & Photonics Review, Год журнала: 2024, Номер 18(8)
Опубликована: Июль 2, 2024
Abstract Persistent mechanoluminescence (PML) is highly desirable for its ability to overcome transient‐emitting behavior, but applications are hindered by the limited emission wavelengths. Herein, a universal chemical interlinkage‐assisted efficient energy transfer (ET) strategy introduced achieve color conversion from green red in traditional PML materials. A straightforward route create RhB@SiO 2 /SAOED system established via covalent interlinkage depositing mesoporous silica‐encapsulated Rhodamine B (RhB) nanoparticles (RhB@SiO ) onto SrAl O 4 :Eu, Dy (SAOED) particles. The resulting exhibits high ET efficiency of 53.5%. multicolor remains visible naked eye exceeding 28 s after mechanical stimulation. With this unique demonstrates potential ranging visualized reading activities multi‐mode anticounterfeiting. This color‐conversion provides new approach high‐performance light energy‐conversion systems and may further inspire more diverse functional classical
Язык: Английский
Процитировано
5
Laser & Photonics Review, Год журнала: 2025, Номер unknown
Опубликована: Фев. 25, 2025
Abstract Brighter, recoverable, and more practical green mechanoluminescence (ML) materials are urgently required in diverse fields such as visual stress sensing advanced display lighting. Ce 3+ /Eu 2+ doping, leveraging efficient f ‐ d transition, remains one of the most promising approaches for achieving high‐performance ML. However, intense competition between afterglow ML necessitates precise control trap depths to develop high‐brightness recoverable doped trap‐controlled systems. In this work, concept multilevel is introduced into Eu ‐doped MGa 2 S 4 ( M = Sr, Ca) and, first time, elucidate mechanism underlying irradiation‐induced recovery powdered : dominated by shallow‐level traps. By optimizing activator doping concentration, depth distribution traps effectively fine‐tuned, remarkable peak intensity compared with renowned SrAl O (~57.3% , Dy ~84.3% (Sr, Ca)Al ) while minimizing interference. Finally, application potential SrGa :Eu demonstrated employing fluorescent coatings visualize crack propagation construction materials. This study explores broader applications ⁺ technologies offers novel insights strategies developing
Язык: Английский
Процитировано
0
Advanced Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 20, 2025
Abstract Mechanoluminescence (ML) materials have shown great promise in stress sensing, structural monitoring, information encryption etc., but are primarily based on crystalline material with limited processability, environmental stability, and optical transparency, which seriously hinder their applications. Here, a highly transparent Mn 2+ ‐doped amorphous glass system significant ML properties is designed. A composition modulation strategy proposed to engineer defects within the network structure, ensures more numerous activate of . Under repeated charging–discharging cycles, samples present remarkable repeatability recovery performance, intensity demonstrates zero‐quenching performance after being placed various solutions for 14 days. Combined Raman, EPR spectra, TL experiments, inherent relationship between traps clarified, where oxygen vacancies responsible generation ML. Based ideal high transparency designed glass, application prospects identification detection evaluated. This work provides design principle accelerate development toward versatile photonic
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 27, 2025
Abstract Mechanoluminescence (ML), the light emission of materials in response to mechanical stimuli, has gained significant attention various fields due situ and real‐time “force light” converting ability. Defects dominate ML process, either for accommodating carriers or as sites carrier recombination. However, comprehensive discussions on ML‐based defects are rarely reported. The review opens with an exploration recent progress research, highlighting central role ML. A range defect types commonly exist firstly introduced, which aims highlight profound influences Subsequently reported defect‐dominated phosphors researched elucidate intricate relationship between specific their influence performance, shedding underlying luminescence mechanisms. Afterward, experimental techniques characterization also demonstrate how work computational modeling is confirmed act a powerful tool investigating atomistic mechanisms defect‐related processes enabling precise control materials. In conclusion, this mini‐review underscores centrality materials, offering integrated perspective potential guide future research endeavors.
Язык: Английский
Процитировано
0
Ceramics International, Год журнала: 2025, Номер unknown
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0
Journal of Luminescence, Год журнала: 2024, Номер 270, С. 120559 - 120559
Опубликована: Март 19, 2024
Язык: Английский
Процитировано
3
Ceramics International, Год журнала: 2025, Номер unknown
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0