A5051587153- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Additive Manufacturing and 3D Printing Technologies
- Quantum Dots Synthesis And Properties
- Bone Tissue Engineering Materials
- TiO2 Photocatalysis and Solar Cells
- Chalcogenide Semiconductor Thin Films
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Polyoxometalates: Synthesis and Applications
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Molecular Junctions and Nanostructures
- 3D Printing in Biomedical Research
- Thin-Film Transistor Technologies
- Advanced Nanomaterials in Catalysis
- biodegradable polymer synthesis and properties
- Advanced Thermoelectric Materials and Devices
- Copper-based nanomaterials and applications
- Transition Metal Oxide Nanomaterials
- Solid-state spectroscopy and crystallography
- Dental materials and restorations
- Carbon and Quantum Dots Applications
Hellenic Mediterranean University
2020-2024
Mediterranean University
2020-2023
University of Patras
2011-2021
Cyprus University of Technology
2017-2019
Foundation for Research and Technology Hellas
2011
The surface passivation effect of SF<sub>6</sub> plasma on ZnO films for application in polymer solar cells is demonstrated.
Metals, such as silver, gold, and copper are known for their biocidal properties, mimicking the host defense peptides (HDPs) of immune system. Developing materials with properties has great importance in medicine, especially when combined 3D printing technology, which is an additional asset various applications. In this work, nanoparticles were used filler stereolithography (SLA) ultraviolet (UV) cured commercial resin to induce material. The nanocomposites developed featured enhanced...
Acrylonitrile Butadiene Styrene (ABS) nanocomposites were developed using Material Extrusion (MEX) Additive Manufacturing (AM) and Fused Filament Fabrication (FFF) methods. A range of mechanical tests was conducted on the produced 3D-printed structures to investigate effect Titanium Nitride (TiN) nanoparticles response thermoplastic polymers. Detailed morphological characterization filaments specimens carried out Atomic Force Microscopy (AFM) Scanning Electron (SEM). High-magnification...
During the COVID-19 pandemic, wide use of 3D printing technologies has been enabled. Fused filament fabrication (FFF) is most widely used technique in communities worldwide for medical components such as face shields and respiratory valves. In current study, potential Polyamide 12 (PA12) silver-doped antibacterial nanopowder (AgDANP) nanocomposites evaluated everyday FFF usage. Filling loadings 1.0-2.0-3.0 4.0 wt.% were selected nanocomposite preparation. Mechanical performance analysis was...
The influence of nanoparticles (NPs) in zirconium oxide (ZrO
Herein, a blend of nanoparticle (NP) inclusions has been arranged at various loadings into photosensitive resin, while bi-functional three-dimensional (3D) printed specimens were fabricated through vat photopolymerization process, to elucidate physicochemical mechanisms and synergistic effects, over the filler loading. Energy-dispersive X-ray spectroscopy (EDS), Raman, thermogravimetric analysis (TGA) revealed chemical/spectroscopic thermal properties specimens. Scanning Electron Microscopy...
Modifications of the ZnO electron extraction layer with low-pressure H plasma treatment increased efficiency inverted polymer solar cells (PSCs) based on four different photoactive blends, namely, poly(3-hexylthiophene):[6,6]-phenyl C71 butyric acid methyl ester (P3HT:PC71BM), P3HT:1',1″,4',4″-tetrahydro-di[1,4]methanonaphthaleno-[5,6]ullerene-C60 (P3HT:IC60BA), poly[(9-(1-octylnonyl)-9H-carbazole-2,7-diyl)-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl]:PC71BM...
A novel π-conjugated azulene molecule as an efficient hole-transport layer in inverted perovskite solar cells is reported.
Perovskite solar cells (PSCs) have proved their potential for delivering high power conversion efficiencies (PCE) alongside low fabrication cost and versatility. The stability the PCE of PSCs can readily be improved by implementing engineering approaches that entail incorporation two-dimensional (2D) materials across device's layered configuration. In this work, 6R-TaS
Herein, polytetrafluoroethylene (PTFE) is evaluated as a reinforcement agent in material extrusion (MEX) additive manufacturing (AM), aiming to develop nanocomposites with enhanced mechanical performance. Loadings up 4.0 wt.% were introduced fillers of polylactic acid (PLA) and polyamide 12 (PA12) matrices. Filaments for MEX AM prepared produce corresponding 3D-printed samples. For the thorough characterization nanocomposites, series standardized tests followed, along AFM, TGA, Raman...
TiO2 has high chemical stability, strong catalytic activity and is an electron transport material in organic solar cells. However, the presence of trap states near band edges arising from defects at grain boundaries significantly affects efficiency To become efficient for photovoltaics related devices, such as perovskite cells photocatalytic it important to tailor its via doping. Nitrogen p-type doping attracted considerable attention enhancing under visible light irradiation while hydrogen...
An engineering approach is implemented for the performance and stability enhancement of perovskite solar cells, through incorporation bismuth telluride flakes in electron transport layer (ETL) as an interlayer on top ETL.
A silanol-functionalized polyoxometalate improves the electron collecting interface.
In the present work, we effectively modify TiO2 electron transport layer of organic solar cells with an inverted architecture using appropriately engineered porphyrin molecules. The results show that optimized modifier bearing two carboxylic acids as anchoring groups and a triazine electron-withdrawing spacer significantly reduces work function TiO2, thereby reducing extraction barrier. Moreover, lower surface energy porphyrin-modified substrate in better physical compatibility between...
Solvothermal synthesized CuO nanoparticles are implemented for the development of room temperature HTLs highly efficient perovskite photovoltaics.
Abstract Crossbar circuits based on two terminal (2T) memristors typically require an additional unit such as a transistor for individual node selection. A memristive device with gate‐tunable synaptic functionalities will not only integrate selection functionality at the cell level but can also lead to enriched on‐demand learning schemes. Here, three‐terminal (3T) mixed‐halide perovskite functions operating low potentials is demonstrated. The operation controlled by both drain ( V D ) and...
Effective interface engineering has been shown to play a vital role in facilitating efficient charge-carrier transport, thus boosting the performance of organic photovoltaic devices. Herein, we employ water-soluble lacunary polyoxometalates (POMs) as multifunctional interlayers between titanium dioxide (TiO2) electron extraction/transport layer and photoactive film simultaneously enhance efficiency, lifetime, photostability polymer solar cells (PSCs). A significant reduction work function...
The investigation of conditions allowing multi-electron reduction and reoxidation polyoxometalate (POM) films onto solid substrates is considered an issue critical importance for their successful incorporation in electronic devices, different types sensors catalytic systems. In the present paper, rich redox chemistry Wells-Dawson ammonium salts, namely (NH4)6P2Mo18O62 (NH4)6P2W18O62, on top metallic (Al), semiconducting (ITO) dielectric (SiO2) under ambient investigated. respective Keggin...
A solution combustion synthesized hole transport layer (HTL) of spinel nickel cobaltite (NiCo2O4) incorporating 3% Cu–2% Li was fabricated using the doctor-blading technique for planar inverted perovskite solar cells (PVSCs). PVSCs Li-doped NiCo2O4 showed an increase in Jsc and Voc device performance parameters compared to unmodified NiCo2O4, leading power conversion efficiency (PCE) 16.5%. X-ray photoelectron spectroscopy measurements revealed tendency Cu cations replace preferably surface...