Published in Nanomaterials (Basel, Switzerland)
Undoped SrAl2O4 nanocrystals were obtained via solution combustion using urea as fuel. The afterglow properties of undoped SrAl2O4 were investigated. Green afterglow from undoped SrAl2O4 is visible to the human eye when the 325 nm irradiation of a helium-cadmium laser (13 mW) is ceased. The afterglow spectrum of undoped SrAl2O4 is peaked at about 5...
In this work, we present some new results in applying thermoluminescence (TL) dating to the clay core of bronze statues. This is very important, due to the impossibility of directly dating a metal. Very few cases of indirect dating of clay cores by TL are reported in the literature. We re-considered three cases of dating of clay core from important...
The phosphate glass samples doped with Tb2O3 oxide (general formula: P2O5-Al2O3-Na2O-Tb2O3) were synthesized and studied for usage in high-dose radiation dosimetry (for example, in high-activity nuclear waste disposals). The influence of terbium concentration on thermoluminescent (TL) signals was analyzed. TL properties of glasses were investigated...
Hybrid materials, i.e., the organically modified silicates (ORMOSIL) based on zincphthalocyanine (ZnPc) and silica glass matrix were synthesized by the sol-gel method using protic solvents (methanol, ethanol, isopropanol, butanol) and aprotic solvent (N,N-dimethylformamide / DMF). The effect of an alkaline environment with NaOH addition (a single-s...
Zinc oxide (ZnO) is one of the wide-bandgap semiconductors, which may be useful in a plethora of electronic, optical, piezoelectric, and scintillating applications. The following article consists in a structural and luminescence analysis of ZnO microfilms grown on a sapphire substrate with a sol–gel method. The films were annealed at different temp...
Ultrasound is used extensively in medical imaging and therapy, non-destructive testing, flow sensing, underwater range assessment, and acoustic microscopy. To ensure the accuracy of these techniques, detailed knowledge of the acoustic pressure field produced by the ultrasonic transducer is required. This paper proposes a functional polymer membrane...
Published in Micromachines
The upscaling of perovskite solar cells is one of the challenges that must be addressed to pave the way toward the commercial development of this technology. As for other thin-film photovoltaic technologies, upscaling requires the fabrication of modules composed of series-connected cells. In this work we demonstrate for the first time the interconn...
An europium doped BaO&ndash / B2O3&ndash / BaCl2 chloroborate glass-ceramic containing a BaCl2 nanocrystalline phase was produced by melt-quenching followed by glass crystallization during annealing. Structural and morphological investigations using x-ray diffraction and scanning electron microscopy have shown fvBaCl2 nanocrystals of about tens of ...
Published in Luminescence : the journal of biological and chemical luminescence
Trap distribution plays a crucial role in deciding the applicability of a material. The thermoluminescence (TL) parameter that describes trap distribution is η, which has never been discussed in TL analysis so far. TL analysis of a commercially available red persistent luminescent material (CaSrS:Eu) was performed using computerized glow curve deco...
Published in Luminescence : the journal of biological and chemical luminescence
The current study presents rhyolite as a novel and promising natural thermoluminescence emission (TL) material. The work focused on enhancing the TL sensitivity of rhyolite via optimization of the processing conditions: annealing and pre-dose effect. The glow curves of irradiated rhyolite sample showed a single peak of about 110°C at 5°C sec-1 heat...
