Journal of Luminescence, Journal Year: 2024, Volume and Issue: unknown, P. 121038 - 121038
Published: Dec. 1, 2024
Language: Английский
Materials Research Bulletin, Journal Year: 2025, Volume and Issue: unknown, P. 113351 - 113351
Published: Feb. 1, 2025
Language: Английский
Citations
2
Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178756 - 178756
Published: Jan. 1, 2025
Language: Английский
Citations
1
ACS Applied Optical Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 18, 2025
Long-lasting persistent phosphors with efficient multimodal luminescence properties serve not only as effective storage but also essential components for developing reliable anticounterfeiting materials. However, achieving simultaneous in poses a significant challenge, it necessitates the coexistence of multiple mechanisms within same matrix along creation traps at various energy levels charge carrier storage. This study presents synthesis LaAlO3 doped varying mol % Sm3+ using coprecipitation method followed by molten salt reaction. The objective is to investigate their and potential applications optical anticounterfeiting. These exhibit (PersL) lasting hours controllable doping optically stimulated (OSL) when being excited 980 nm laser after UV preirradiation. Thermo-stimulated (TSL) reveals deep enhanced OSL. Additionally, LAO:0.5S phosphor shows PersL upon X-ray irradiation, suggesting imaging applications. Gd3+ incorporation optimized OSL performance while DFT calculations elucidated trapping mechanisms. findings tetra-modal comprising downconversion (PL & RL), PersL, OSL, TSL highlight multifunctional these LaAlO3-based advanced
Language: Английский
Citations
0
Journal of Luminescence, Journal Year: 2025, Volume and Issue: unknown, P. 121097 - 121097
Published: Jan. 1, 2025
Language: Английский
Citations
0
Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 21, 2025
The commercial blue persistent luminescent (PersL) phosphor (CaAl2O4:Eu2+,Nd3+) is renowned for its exceptional PersL duration, but it hampered by poor chemical stability. There an urgent need to develop phosphors that can combine the excellent property with robust In this work, we report on a series of highly stable Ce3+-doped oxynitride phosphors. Notably, BaSi3Al3O4N5:Ce3+ has been identified contain two distinct types defects in host: one associated photoluminescence (PL) and other electron trapping detrapping dynamics. These intrinsic have systematically investigated confirmed analyzing both PL spectra, which could be generated nitrogen deficiency existing oxygen vacancy BaSi3Al3O4N5. widely distributed trap from 0.21 1.02 eV, peak at 0.63 as determined initial rise method. exhibits not only water-resistance stability also superior heat-resistant Leveraging traps great stability, successfully demonstrated optical information storage ability using gradual writing This comprehensive study provides valuable insights into development potential applications optoelectronic devices.
Language: Английский
Citations
0
Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown
Published: March 19, 2025
Abstract Optical information storage technology offers several advantages, including cost‐effectiveness, multidimensional storage, and rewritable capability. Consequently, it has become increasingly popular for optical media. Herein, a novel material Na 2 CaGe O 6 :Bi 3+ (NCGO:Bi ) is developed using non‐equivalent substitution strategy, which exhibits photochromic (PC) ultraviolet persistent luminescence (UV PersL) properties. NCGO:Bi demonstrates excellent white‐to‐brown PC performance under 254 nm light irradiation. The brown phosphor can be effectively bleached 425 or thermal stimulation, demonstrating reversibility over multiple cycles. Additionally, the displays UV PersL characteristics. representative sample NCGO:0.001Bi with duration time exceeding 10 h after excitation, peaking at 358 nm. Simultaneously, due to electrons captured by deep traps released via low‐energy also photostimulated Specifically, oxygen vacancies (V are identified primarily responsible observed phenomena X‐ray photoelectron spectroscopy (XPS) electron paramagnetic resonance (EPR) analyses. Overall, this work indicates that combination of light‐induced in single potential designing advanced luminescent materials application storage.
Language: Английский
Citations
0
Journal of the American Ceramic Society, Journal Year: 2025, Volume and Issue: unknown
Published: March 27, 2025
ABSTRACT Recent advances in inorganic negative thermal expansion (NTE) materials have highlighted their potential for multifunctional applications, yet challenges remain optimizing luminescent properties practical use. Based on Y 2 W 3 O 12 :Tb 3+ /Eu NTE ceramics, we present a thermally regulated optical encoding and encryption approach. Under 254 nm UV excitation, the distinctive high‐temperature enhancement effect of red emission quenching phenomenon green were discovered these enabling an effective temperature‐controlled color change phenomenon. Optical information readout realized through synergistic modulation light heat, decoding process multivariate codes alphabets at high temperatures was accomplished. The accomplished by modulating Tb doping concentration ratio regulating ceramics over wide range. Furthermore, ceramic demonstrates temperature range 363‒603 K sensing effect. This offers research idea achieving coding sensing.
Language: Английский
Citations
0
Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0
Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0
Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 142645 - 142645
Published: May 1, 2025
Language: Английский
Citations
0