A5075299870- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Thin-Film Transistor Technologies
- Graphene research and applications
- Semiconductor materials and devices
- Silicon Nanostructures and Photoluminescence
- Silicon and Solar Cell Technologies
- Advanced MEMS and NEMS Technologies
- Copper-based nanomaterials and applications
- Molecular Junctions and Nanostructures
- Ferroelectric and Piezoelectric Materials
- Optical Coatings and Gratings
- Electromagnetic wave absorption materials
- Diamond and Carbon-based Materials Research
- Surface Roughness and Optical Measurements
- Force Microscopy Techniques and Applications
- Transition Metal Oxide Nanomaterials
- Acoustic Wave Resonator Technologies
- Advanced Surface Polishing Techniques
- Advanced Antenna and Metasurface Technologies
- Conducting polymers and applications
- Nanowire Synthesis and Applications
- Electronic and Structural Properties of Oxides
- Metal and Thin Film Mechanics
- Multiferroics and related materials
National Institute for Research and Development in Microtechnologies
2015-2024
Universitatea Națională de Știință și Tehnologie Politehnica București
2020
Toyohashi University of Technology
2020
National Institute for Laser Plasma and Radiation Physics
2020
University of Michigan–Ann Arbor
2020
Valahia University of Targoviste
2010
This paper presents an efficient method to generate high-order Bessel-Gauss beams carrying orbital angular momentum (OAM) by using a thin and compact optical element such as multilevel spiral axicon. approach represents excellent alternative for diffraction-free OAM beam generation instead of complex methods based on doublet formed physical phase plate zero-order axicon, holograms loaded spatial light modulators (SLMs), or the interferometric method. Here, we present fabrication process...
This paper presents the area-selective wet etching (ASWE) method as a novel approach to have selective patterning of 6.8 nm-thick zirconium-doped hafnium oxide (HZO) thin film, improve performance metal ferroelectric (MFM)-like structure. According electromagnetic simulations microwave phase shifters with patterned HZO films, it is underlined importance selectively targeted areas covered instead full-coverage wafers, gain further increase in low-voltage tunable high-frequency components. The...
Concentrated collagen hydrolysate (HC10CC), rabbit glue (RCG), and keratin (KH) were investigated in terms of their extraction from mammalian by-products processing by electrospinning. The electrospun nanofibers characterized scanning electron microscopy coupled with the energy dispersive X-ray spectroscopy (SEM/EDS), attenuated total reflectance Fourier transform infrared (ATR-FTIR), differential calorimetry (DSC), indentation tests. cytotoxicity was conducted on L929 fibroblast cells using...
We show that graphene quantum dots (GQD) embedded in a semiconducting poly(3-hexylthiophene) polymeric matrix act as charge trapping nanomaterials. In plane current-voltage (I-V) measurements of thin films realized from this nanocomposite deposited on gold interdigitated electrodes revealed the GQD enhanced dramatically hole transport. I-V characteristics exhibited strong nonlinear behavior and pinched hysteresis loop, signature memristive response. The transport properties were explained...
This study presents the synthesis and characterization of nanocomposites based on polymer colloids (PC) MXenes for applications in EMI shielding.
Summary This paper aims at accounting for the uncertainties because of material structure and surface topology micro‐beams in a stochastic multi‐scale model. For micro‐resonators made anisotropic polycrystalline materials, micro‐scale exist grain size, orientation, profile. First, realizations volume elements are obtained based on experimental measurements. To account roughness, defined as element having same thickness microelectromechanical system (MEMS), with view to use plate model...
Polymer nanocomposites for optical applications, with controlled refractive index in the range 1.46-1.78 were prepared by chemical route and sol-gel process, starting from poly(methylmethacrylate) (PMMA), hydroxyethylmethacrylate (HEMA), polyvinyl alcohols (PVA-1 PVA-2) metal oxides alkoxides or inorganic compounds. The properties of these materials modified oxide nanoparticles depend on composition, concentration, particle size dispersion homogeneity. Ellipsometric method was used to...
In this paper a method to obtain graphene/polymer nanocomposite film laminated into PET sandwich structure with improved EMI shielding was investigated. The composite characterized by FTIR spectroscopy, X-ray diffraction, AFM, SEM microscopy and Raman spectroscopy. effectiveness evaluated in 8–12.5 GHz X-band frequencies for different ratio between graphene filler poly(3,4-ethylenedioxythiophene) polystyrene sulfonate matrix at thickness of nanocomposite.