Publications by authors named "A Soultati"
Article Synopsis
- The study focuses on improving the efficiency of organic light-emitting diodes (OLEDs) by modifying the hole transport layer (HTL) with core-shell nanoparticles, specifically silver nanoparticles (Ag-NPs) embedded in a tungsten polyoxometalate compound (POM).
- The research demonstrates that Ag-NPs enhance OLED performance through better hole injection, conductivity, and beneficial optical effects such as Localized Surface Plasmon Resonance (LSPR), thereby improving carrier balance and exciton recombination rates.
- A comparative analysis with POM gold nanoparticles (POM-Au NPs) indicates that the POM-Ag NPs offer significant advantages, suggesting this innovative approach could
Molecular aggregation is a powerful tool for tuning advanced materials' photophysical and electronic properties. Here we present a novel potential for the aqueous-solvated aggregated state of boron dipyrromethene (BODIPY) to facilitate phototransformations otherwise achievable only under harsh chemical conditions. We show that the photoinduced symmetry-breaking charge separation state can itself initiate catalyst-free redox chemistry, leading to selective α-C(sp)-H bond activation/C-C coupling on the BODIPY backbone.
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- - The study examined how electric conduction in molybdenum oxide films changes with temperature and electronic structure through experiments involving current-voltage measurements and spectroscopic ellipsometry.
- - Both amorphous and crystalline molybdenum oxide samples had oxygen deficits and exhibited ambipolar conduction (involving both electrons and holes) at lower temperatures, while at higher temperatures (over 300°C), oxidation and improved atomic structure led to a decrease in this ambipolar behavior.
- - As temperatures returned to room level, the ambipolar conduction gradually re-emerged, resulting in a unique "metallic" behavior in electrical resistance when electrons were injected into the semiconductor.
Two gallium porphyrins, a tetraphenyl GaCl porphyrin, termed as (TPP)GaCl, and an octaethylporphyrin GaCl porphyrin, termed as (OEP)GaCl, were synthesized to use as an electron cascade in ternary organic bulk heterojunction films. A perfect matching of both gallium porphyrins' energy levels with that of poly(3-hexylthiophene-2,5-diyl) (P3HT) or poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) polymer donor and the 6,6-phenyl C butyric acid methyl ester (PCBM) fullerene acceptor, forming an efficient cascade system that could facilitate electron transfer between donor and acceptor, was demonstrated. Therefore, ternary organic solar cells (OSCs) using the two porphyrins in various concentrations were fabricated where a performance enhancement was obtained.
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- - The paper discusses recent research on the development of low-cost materials for efficient sensors and energy devices, focusing on the effects of halogen doping on tin dioxide (SnO) to improve functionality.
- - It utilizes Density Functional Theory (DFT) calculations to analyze how halogen doping modifies the electronic properties, defect processes, and structures of SnO, leading to a reduced bandgap and enhanced gas-sensing performance.
- - The findings reveal that halogen doping serves as an effective and economical approach to significantly boost the performance of SnO at room temperature, offering insights into potential applications in sensors and renewable energy technologies.