A5081438967- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Organic Light-Emitting Diodes Research
- Diamond and Carbon-based Materials Research
- Advanced Sensor and Energy Harvesting Materials
- Metal and Thin Film Mechanics
- Semiconductor materials and devices
- ZnO doping and properties
- Polymer Nanocomposite Synthesis and Irradiation
- Silicon and Solar Cell Technologies
- Silicon Nanostructures and Photoluminescence
- Laser Material Processing Techniques
- Copper-based nanomaterials and applications
- Nanofabrication and Lithography Techniques
- Semiconductor materials and interfaces
- Advanced Memory and Neural Computing
- solar cell performance optimization
- Perovskite Materials and Applications
- Boron and Carbon Nanomaterials Research
- Luminescence and Fluorescent Materials
- Polymer crystallization and properties
- Electrospun Nanofibers in Biomedical Applications
- Ion-surface interactions and analysis
- Lubricants and Their Additives
Aristotle University of Thessaloniki
2014-2024
University of Ioannina
2018
École Polytechnique
2016
Université Paris-Saclay
2016
Laboratoire de Physique des Interfaces et des Couches Minces
2016
Bellingham Technical College
2015
Perovskite based solar cells (PSCs) have attracted a huge scientific interest due to their high power conversion efficiencies (PCE) reached already over 20%. However, for solution processed perovskite photovoltaics there are several issues like i.e. ink concentration, deposition process, temperature, humidity of the environment, etc that be addressed in order obtain devices with and reproducibility fabrication process. In addition, it seems will very challenging topic future, especially...
The performance of polymer–fullerene bulk heterojunction (BHJ) solar cells is strongly dependent on the vertical distribution donor and acceptor regions within BHJ layer. In this work, we investigate in detail effect hole transport layer (HTL) physical properties thermal annealing morphology cell performance. For purpose, have prepared with four distinct formulations poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) buffer layers. samples were subjected to annealing,...
An electrospray-printing technique was employed for the fabrication of OFETs based on small-molecule:semiconducting polymer blends.
Incorporating plasmonic nanoparticles in organic photovoltaic (OPV) devices can increase the optical thickness of absorber layer while keeping its physical small. However, trade-offs between various structure parameters have caused contradictions regarding effectiveness plasmonics literature, that somewhat stunted progressing a unified theoretical understanding for practical applications. We examine enhancement mechanisms PCDTBT:PC70BM OPV cells incorporating metal nanoparticles. The near-...
The optical anisotropy of biaxially stretched poly(ethylene terephthalate) and naphthalate) films has been investigated, by visible-far ultraviolet to IR spectroscopic ellipsometry (SE). consistency the SE spectra analysis results between two energy regions, in a full rotational scan angle θ plane incidence stretching direction, justified approximation as uniaxial materials with their optic axis parallel surface.
We investigate the optical properties of biaxially stretched poly(ethylene terephthalate) (PET) and naphthalate) (PEN) polymer films by spectroscopic ellipsometry (SE) in a wide spectral region, from infrared (IR) (900−3500 cm−1) to vis-far UV (vis-fUV) (1.5−6.5 eV), terms their optical, electronic, vibrational response. The stretching procedure during fabrication leads rearrangement macromolecular chains parallel direction (or machine direction), resulting an anisotropy films. For deduction...
Carbon nitride $({\mathrm{CN}}_{x})$ films were deposited by reactive sputtering to study the effect of ion bombardment during deposition (IBD) on their bonding structure. Fourier-transform infrared (IR) ellipsometry (FTIRE) was used identify and distinguish characteristic bands ${\mathrm{sp}}^{3}$ $\mathrm{C}\mathrm{---}\mathrm{N},$ ${\mathrm{sp}}^{2}$ $\mathrm{C}\mathrm{=}\mathrm{N},$ ${\mathrm{sp}}^{1}$ $(\ensuremath{-}\mathrm{C}\mathrm{\ensuremath{\equiv}}\mathrm{N},$...
It is well known that the implementation of flexible organic electronic devices (FEDs) in our everyday life improve and revolutionize several aspects behavior. Although there has been considerable progress area inorganic (based on Si), are numerous advances (semiconducting, conducting insulating), hybrid (organic-inorganic) materials exhibit customized properties stability, synthesis preparation methods, which characterized by a significant amount multidisciplinary efforts. The understanding...
In this work, the fabrication and characterization of flexible organic light emitting diode (OLED) devices by printing processes is presented. New synthesized anthracene‐based polymer as well commercially available polymers such polyfluorenes polyphenylene vinylenes were applied materials. The photoluminescence (PL) properties films evaluated revealing characteristic emission each material. optical investigated NIR‐Vis‐far UV spectroscopic ellipsometry. accurate determination thickness...