Structural, Optical, and UVA-Emitting Persistent Luminescence Features of Ba1–xAl2Si2O8:(x = 0–0.05)Eu2+ and Its Anticounterfeiting ApplicationResearch concerning UVA-emitting persistent luminescence (PerL) phosphors is growing due to their potential applications in phototherapy, sterilization, photocatalytic activity, etc. We report the structural and optical properties of undoped and Eu2+-doped BaAl2Si2O8 phosphors synthesized using the solution combustion method with varying Eu concentrations from 1 to 5 mol %. Structural analysis confirms that the undoped and Eu2+-doped samples crystallize...
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2025
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Optical Characteristics and Judd-Ofelt Analysis of Dy3+-Activated Bismuth Oxychloride Phosphors for Potential Applications in WLEDs, Optical Thermometry, and Forensic Sciences 来源：ACS PublicationsDesigning iconic WLEDS derived from a single host has bestowed an impetus to the synthesis of Dy3+-activated bismuth oxychloride (BiOCl) phosphors via a facile solid-state method. The insights of crystal structure were confirmed using X-ray diffraction analysis and the Rietveld refinement method. The investigation of the UV–vis-NIR spectra extended the characteristics of bonding structures and radiativ...
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2025
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来源 ：ACS PublicationsRelaxor ferroelectrics with a large piezoelectric coefficient (d33), sizable coercive field (EC), and high signal piezoelectric coefficient (d33*) are of particular importance in technology. Due to the trade-off between domain switching and high energy barriers, materials of this kind are rather rare, and the discovery and design of such materials remain a challenging task. Here, we successfully grew Sm0.01Pb0.985[(Zn1/3Nb2/3)0.93Ti0.07]O3 (Sm–PZN–PT) crystals with a high d33 value of 2930 pC/N (up to 3032 pC/N at 150 °C) and a significantly enhanced EC value of 12.3 k...
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2025
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来源：ACS PublicationsYb2O3@C, Gd2O3@C, and CeO2@C hybrid catalysts with porous, defect-rich structures were synthesized via a modified vaporization–carbonization method and incorporated (7 wt %) into Mg96La3Ni alloys by ball milling. Yb2O3@C increased hydrogen absorption, while Gd2O3@C and CeO2@C reduced it; all enhanced dehydrogenation, with CeO2@C most effective. At 360 °C, 3 wt % H2 was released in 3.1 min for pristine Mg96La3Ni, but only 1.0, 1.9, and 2.7 min with CeO2@C, Yb2O3@C, and Gd2O3@C, respectively. CeO2@C reduced the activation energy from 121.67 to 109.78 kJ/mol. This study hi...
Release time:
2025
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