Journal of Inorganic Materials, Год журнала: 2024, Номер 39(10), С. 1107 - 1107
Опубликована: Янв. 1, 2024
2 ，赵景泰 1,2 (桂林电子科技大学 1. 材料科学与工程学院; 2. 信息材料广西重点实验室; 3. 机械工程学院, 桂林
Язык: Английский
Advanced Optical Materials, Год журнала: 2024, Номер unknown
Опубликована: Сен. 14, 2024
Abstract Mechanoluminescence (ML) refers to the luminescence phenomenon that occurs when a material is under external mechanical stimuli. However, relying solely on stress information obtain ML signals prone test errors in complex conditions. In this work, Tb 3+ /Eu ‐doped Lu 3 Al 2 Ga O 12 multicolor reported, which color can be adjusted from white red (CIE coordinates: (x = 0.313, y 0.3293) 0.6183, 0.379)) by changing Eu concentration. addition, LAGO: 0.25% and 1.5% are physically mixed at different mass ratios, varied stimuli‐responsed emission characteristics of ions used develop temperature dual sensing device. Stress further reflected simultaneously through blue/red ratio I R (I /I ). As increases, changes 0.3259, 0.306) 0.4707, 0.3625)), relative sensitivity (Sr) as high 1.209% K −1 298 K. This device provides new idea for potential structural safety monitoring, multi‐modal anti‐counterfeiting technology, etc.
Язык: Английский
Процитировано
6
Laser & Photonics Review, Год журнала: 2024, Номер 18(8)
Опубликована: Апрель 9, 2024
Abstract Mn 2+ ‐doped metal halide perovskites present remarkable optical properties in optoelectronic applications, although the realization of high efficiency and stability is still a challenge. In this work, series highly efficient stable orange‐emitting alloyed Cs 4 Cd 1‐ x Bi 2 Cl 12 single crystals are successfully synthesized via hydrothermal reaction. Combined with crystal structure spectral characterization at 7 K, site occupation defect emission systematically discussed. Benefiting from effective [BiCl 6 ] 3− →[MnCl 4− energy transfer lattice distortion, these exhibit maximum internal external quantum yield ≈97% ≈65% 35% heavy doping level. Interestingly, ‐alloyed remarkably waterproof stability, no decrease intensity observed after immersion deionized water for h. After soaking 100 days, can maintain 44%, implying good chemical moisture resistance due to formation protective BiOCl layer. This work provides new insights into optimization mechanism luminescence overcoming downside their waterproofing humid conditions.
Язык: Английский
Процитировано
4
Materials Horizons, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Near infrared mechanoluminescence (NIR-ML) materials have attracted the attention of researchers due to their unique advantages, such as high resistance bright-field interference and higher penetration depth into biological tissues. However, reported NIR-ML are mainly rare-ion-activated narrow-band emitters. In this work, we report a material BaGa12O19:Cr3+ by solid state reaction method. Broad NIR ML (650-1000 nm) is observed at lower force loads (12 N), which based on Cr3+ ion's multi-lattice site occupation. After heat treatment 573 K for 20 min, still maintains 84.4% its intensity. Furthermore, intensity also significantly improved after UV pre-irradiation. Due defective piezoelectric photonic effect, has great self-recoverable properties even in absence sunlight irradiation. Finally, rate reached 66.97% tissues, suggests potential prospects biostress detection towards bio-imaging applications.
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 24, 2025
Abstract Mechanoluminescence (ML) and upconversion luminescence (UCL) materials exhibit significant potential in advanced optical sensing applications. However, single‐function luminescent often fail to meet the increased complexity precision demands of modern application scenarios. Here, flexible fiber based on ML UCL dual‐mode is demonstrated Ca/SrZnOS: Nd 3+ , Er which can be integrated into stress temperature devices. After 4200 cycles 2 N load, intensity remaines at ≈67% its initial value. Additionally, such device has a sensitivity 1.423% K −1 273.15 K, with detection accuracy 1.1990 °C. The maintained excellent cycling stability over broad range (0–80 °C), as evidenced by unchanged FIR values after 10 cycles. demonstrates applications remote monitoring, particularly high‐temperature, high‐pressure, or hazardous environments, where transmission ensures both safety accuracy.
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
ACS Applied Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 10, 2025
Язык: Английский
Процитировано
0
Materials Today Chemistry, Год журнала: 2025, Номер 45, С. 102653 - 102653
Опубликована: Март 18, 2025
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
Laser & Photonics Review, Год журнала: 2025, Номер unknown
Опубликована: Апрель 15, 2025
Abstract With the rapid advancement of information technology, demand for data storage has grown significantly, and optical attracted considerable attention due to its unique advantages. However, current technologies are primarily based on single‐channel visible light regions, limiting security existing storage. Thus, it is necessary develop new materials a multi‐channel encryption strategy invisible light. In this work, we report Ruddlesden‐Popper phase Ba 2 SnO 4 phosphor with photostimulated luminescence (PSL) properties, enhance near‐infrared emission through fluorine substitution achieve multi‐level encryption. The enhanced mechanisms elucidated by investigating effects fluorine‐induced lattice distortion enrichment self‐trapped excitons (STEs) increased oxygen vacancies. Additionally, density functional theory calculations reveal influence F formation energy vacancies, providing insight into specific vacancy sites that contribute STEs. Furthermore, observed PSL properties exhibit repeatable capabilities. Based this, dual‐channel scheme using encoding designed, offering approach
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