M. Benwadih
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View article: Organic Neuromorphic Circuits for Real‐Time Biosignal Applications
Organic Neuromorphic Circuits for Real‐Time Biosignal Applications Open
Organic neuromorphic circuits offer new opportunities for low‐power, flexible electronics capable of real‐time inference at the edge. In this work, we present a neuromorphic system based on organic thin‐film transistors (OTFTs) that perfor…
View article: Screen-Printed 1 × 4 Quasi-Yagi-Uda Antenna Array on Highly Flexible Transparent Substrate for the Emerging 5G Applications
Screen-Printed 1 × 4 Quasi-Yagi-Uda Antenna Array on Highly Flexible Transparent Substrate for the Emerging 5G Applications Open
In the Internet of Things (IoT) era, the demand for cost-effective, flexible, wearable antennas and circuits has been growing. Accordingly, screen-printing techniques are becoming more popular due to their lower costs and high-volume manuf…
View article: Performance Analysis of a Screen-Printing Process for Cost-Effective Flexible Bow-Tie Antennas
Performance Analysis of a Screen-Printing Process for Cost-Effective Flexible Bow-Tie Antennas Open
This paper presents a comparative analysis of performance for several antenna prototypes using a screen-printing process. This analysis was performed using various bow-tie antenna configurations, including single-band and multi-band antenn…
View article: Screen-printed 1 x 4 Quasi-Yagi-Uda Antenna Array on Highly Flexible Transparent Substrate for the Emerging 26 GHz Band 5G Applications
Screen-printed 1 x 4 Quasi-Yagi-Uda Antenna Array on Highly Flexible Transparent Substrate for the Emerging 26 GHz Band 5G Applications Open
In the Internet of Things (IoT) era, the demand for cost-effective, flexible, wearable antenna and circuits has become very high. Accordingly, screen printing techniques are becoming more popular due to their lower costs and high-volume ma…
View article: High-Gain Flexible Transparent Screen-Printed Quasi-Yagi Antenna for V-Band Applications
High-Gain Flexible Transparent Screen-Printed Quasi-Yagi Antenna for V-Band Applications Open
International audience
View article: Ultra‐High Bending Angle of Miniaturized Piezoelectric Actuator Screen‐Printed on Stiff Substrate
Ultra‐High Bending Angle of Miniaturized Piezoelectric Actuator Screen‐Printed on Stiff Substrate Open
The miniaturization of bending actuators is valuable for robotics, embedded systems, and medical applications, but often results in performance loss. This study presents a multilayered, screen‐printed PVDF‐TrFE (polyvinyledenedifluoride‐tr…
View article: The Longitudinal and Transverse Piezoelectric Effects of the Ferroelectric Polymer P(VDF‐TrFE)
The Longitudinal and Transverse Piezoelectric Effects of the Ferroelectric Polymer P(VDF‐TrFE) Open
Polyvinylidene fluoride‐trifluoroethylene (P(VDF‐TrFE)) exhibits outstanding electromechanical properties and is a material of choice for non‐volatile memories, energy‐harvesting systems, multifunctional actuators, and sensors. However, th…
View article: Double‐Sided Conformable Piezoelectric Force Sensor with Enhanced Performance and Bending Correction
Double‐Sided Conformable Piezoelectric Force Sensor with Enhanced Performance and Bending Correction Open
Flexible piezoelectric devices have gained considerable interest due to their potential for new applications, particularly in wearable technology. However, a significant challenge remains in measuring low forces on nonplanar and deformable…
View article: Electromechanical Sensors for Measurement of Mitral Valve Coaptation Pressure
Electromechanical Sensors for Measurement of Mitral Valve Coaptation Pressure Open
International audience
View article: Spatially-resolved in-situ/operando structural study of screen-printed BaTiO3/P(VDF-TrFE) flexible piezoelectric device
Spatially-resolved in-situ/operando structural study of screen-printed BaTiO3/P(VDF-TrFE) flexible piezoelectric device Open
International audience
View article: High Curvature of Polymer‐Based Miniaturized Flexible Actuator at Very Low Electric Field
High Curvature of Polymer‐Based Miniaturized Flexible Actuator at Very Low Electric Field Open
The use of high electric fields, as well as pre‐stressing, are the two main obstacles to the widespread use of poly(vinylidene fluoride (PVDF)‐based actuators. In response, a new double‐sided multilayer device has been developed which, cou…
View article: Millimeter-Wave Cost-Effective Screen-Printed Log Periodic Antenna
Millimeter-Wave Cost-Effective Screen-Printed Log Periodic Antenna Open
International audience
View article: Design Optimization of Printed Multi-Layered Electroactive Actuators Used for Steerable Guidewire in Micro-Invasive Surgery
Design Optimization of Printed Multi-Layered Electroactive Actuators Used for Steerable Guidewire in Micro-Invasive Surgery Open
To treat cardiovascular diseases (i.e., a major cause of mortality after cancers), endovascular-technique-based guidewire has been employed for intra-arterial navigation. To date, most commercially available guidewires (e.g., Terumo, Abbot…
View article: Design guidance of a circularly polarized bowtie antenna for ISM bands
Design guidance of a circularly polarized bowtie antenna for ISM bands Open
This article presents the design steps of a planar circularly polarized (CP) bowtie‐shaped antenna for 2.4–2.5 GHz industry, science, and medicine band. Using these design steps, an antenna model is developed. The antenna design is extensi…
View article: Planar Quasi Log Periodic Dipole Antenna for Millimeter Wave 5G Band
Planar Quasi Log Periodic Dipole Antenna for Millimeter Wave 5G Band Open
This article present the design and measurement of a planar quasi log periodic antenna covering the first millimeter band of 5G (24.25 GHz - 28.4 GHz). The antenna is conceived using HFSS and realized using laser etching on Taconic RF-35 s…
View article: Quantitative Characterization of Impact‐Induced Energy Harvesting: A Case Study on Stretchable Piezoelectric Thin Films on Different Substrates
Quantitative Characterization of Impact‐Induced Energy Harvesting: A Case Study on Stretchable Piezoelectric Thin Films on Different Substrates Open
Piezoelectric materials represent a great alternative to power small electronic devices with a lower environmental impact than conventional power sources. Despite significant progress on the subject, most studies focus on energy harvesting…
View article: Phase transitions in flexible solution-processed ferroelectric P(VDF-TrFE) copolymer thin films
Phase transitions in flexible solution-processed ferroelectric P(VDF-TrFE) copolymer thin films Open
View article: Étude d'une antenne flexible bow-tie double bande réalisée par gravure laser et par sérigraphie
Étude d'une antenne flexible bow-tie double bande réalisée par gravure laser et par sérigraphie Open
View article: Sol–gel derived barium strontium titanate thin films using a highly diluted precursor solution
Sol–gel derived barium strontium titanate thin films using a highly diluted precursor solution Open
Among lead-free ferroelectric materials, Barium Strontium Titanate (BST) has interesting ferroelectric, pyroelectric, piezoelectric, and energy-harvesting properties. This material can be advantageously solution-deposited. There is a need …
View article: Influence of Matrix and Surfactant on Piezoelectric and Dielectric Properties of Screen-Printed BaTiO3/PVDF Composites
Influence of Matrix and Surfactant on Piezoelectric and Dielectric Properties of Screen-Printed BaTiO3/PVDF Composites Open
The aim of this paper was to provide insight into the impact of matrix and surfactants on the rheology, morphology, and dielectric and piezoelectric properties of screen-printed BaTiO3/PVDF composites. Two matrices were compared (PVDF–HFP …
View article: Effect of thermal annealing on the morphology of sol–gel processed barium strontium titanate thin films: Consequences on electrical properties
Effect of thermal annealing on the morphology of sol–gel processed barium strontium titanate thin films: Consequences on electrical properties Open
The link between the morphology and the electrical properties of the sol–gel processed Ba0.7Sr0.3TiO3 thin films is investigated. Previous studies have not fully explained the differences in growth morphology as a function of the elaborati…
View article: Morphology of sol-gel porous In-Ga-Zn-O thin films as a function of annealing temperatures
Morphology of sol-gel porous In-Ga-Zn-O thin films as a function of annealing temperatures Open
View article: Non-Arrhenius conduction due to the interface-trap-induced disorder in X-doped amorphous In-X-Zn oxides thin-film transistors
Non-Arrhenius conduction due to the interface-trap-induced disorder in X-doped amorphous In-X-Zn oxides thin-film transistors Open
Thin film transistors, with channels composed of In-X-Zn oxides, IXZO, with X dopants: Ga, Sb, Be, Mg, Ag, Ca, Al, Ni, and Cu, were fabricated and their I-V characteristics were taken at selected temperatures in the 77 K < T < 300 K range.…