Defect Engineering for Enhanced Charge Carrier Storage in Zirconium Stannum Halide Perovskites: Advancements in Low‐Temperature Data Storage and X‐Ray Imaging

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Optimizing charge carrier storage in trap‐controlled halide perovskites poses a significant challenge, particularly due to the varying electronic properties and trap dynamics across temperature range from ≈100 400 K. This dependence affects both efficiency of generation their retention. In this study, substantial advancements performance zirconium stannum are reported through targeted defect engineering. By modulating composition Cs 2 Sn 1‐x Zr x Cl 6 incorporating dopants Cr 3+ , Ga Bi Te 4+ remarkable enhancements X‐ray triggered capacity realized. Notably, ZrCl doped with or exhibits three fold increase 100 300 K, significantly outperforming state‐of‐the‐art BaFBr(I):Eu 2+ red afterglow Y O S:Eu phosphor. The :yTe demonstrates over 40 times greater wide K achieves low detection limit 99.16 nGy for dosimetry applications. Furthermore, :0.03Te exceptional persistent luminescence lasting 14 h at 180 295 research underscores high‐performance capabilities engineered perovskites, paving way application advanced technologies temperatures.

Language: Английский

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Realizing Color‐Tunable Photochromism in Apatite‐Structured Compounds via Trapping Energy Management for Wide Gamut Encryption

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Abstract Photochromic materials have shown significant potential in a plethora of possible applications. However, practical applications, they remain limited by intricate multi‐stage synthesis processes and restricted range photochromic colors. Modulating the chromatic properties involves an manipulation their chemical composition, crystal structure, trapping energy levels, rendering it extremely challenging to achieve desired color gamut. In this study, apatite‐type are rapidly synthesized using microwave‐assisted approach. The behavior is systematically examined substituting F⁻ ions with Cl⁻ ions, facilitating transformation centers from pink green ultimately blue. Notably, prominent reflectance absorption peak ≈554 nm exhibited gradual red shift 625 nm. A thorough characterization reveals that large wavelength F‐center arises effective modulation levels differing trap distributions linked photochromism observed across various Sr₅(PO₄)₃F₁₋ x Cl :1%Eu. Finally, applications these multicolor compounds demonstrated routine decorations sophisticated multi‐hued cryptographic technologies. These findings highlight efficacy management optimizing considerable capability for on‐demand

Language: Английский

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Fe-dependent optical properties of peralkaline soda aluminosilicate glasses: a combined Raman and photoluminescence study

Optical Materials, Journal Year: 2025, Volume and Issue: unknown, P. 117161 - 117161

Published: May 1, 2025

Language: Английский

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Thermochromic and Electrochromic Characteristics of Graphene Reinforced Polymeric Nanocomposites—A Review

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 24

Published: Dec. 9, 2024

Color changing stimuli sensitive polymeric materials, toward varying heat (thermochromic) or voltage (electrochromic) conditions, have gained topical scientific interest owing to intrinsically valuable property-performance profiles. Research advancements on these exceptional categories of materials led novel designs high-performance color-shifting matrices reinforced with graphene nanoadditives. Accordingly, the current mutinous field review documents technical worth thermochromic polymer/graphene nanocomposites and electrochromic casing notable fundamental/structural aspects, fabrication tactics, physical attributes especially related coloration/decoloration applied heat/current stimuli. For nanocomposites, thermoplastic (poly(ethylene terephthalate), poly(dimethyl siloxane), cellulose, etc.) for nanomaterials conjugated (polyaniline, polythiophene, poly(3,4-ethylenedioxythiophene), derivatives) seemed be finest choice reinforcement. In view microstructural, thermal/mechanical stability, phase/glass transition temperatures, critical solution temperature, optical/transmittance, current–voltage, heat/stimuli sensitivity/efficiency; color aptitudes been discussed here. As per our analysis, literature hitherto divulged promising next-generation applications smart windows, thermo-sensor/e-sensors, e-textiles, energy devices, defense camouflage. Nevertheless, future commercial scale production/utilization advanced graphene-based automated transitioning hybrids demand cutting-edge design innovations, controlled/optimized synthesis strategies, focused investigations underlying mechanisms as well structure-property-performance challenges/aspects.

Language: Английский

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