Publicaciones

• ART

Numerical study of charge transport layers in inverted ternary organic photovoltaic cells

Vincent Magnin, Kekeli N’konou

This study investigates the crucial role of charge transport layers in enhancing the performance of inverted organic photovoltaic cells (OPVs) through advanced numerical simulations using OghmaNano software. OPVs offer distinct advantages, including lightweight, flexibility, and potential cost-...

EPJ Photovoltaics, 2024, 15, pp.29. ⟨10.1051/epjpv/2024024⟩. ⟨hal-04706540⟩

• ART

La spectroscopie térahertz : analyses structurales et de conduction

Romain Peretti

La gamme TéraHertz (THz) se situe entre l'électronique et la photonique. Les fréquences THz sont trop élevées pour le bon fonctionnement des transistors et trop faibles en énergie pour rendre les transitions laser efficaces. Ainsi, la gamme THz représente l'une des dernières frontières de...

L'Actualité Chimique, 2024, 497, pp.68. ⟨hal-04707074⟩

• COMM

Nonlinear Modeling of CMOS Compatible SiN/AlN/GaN MIS-HEMT on 200mm Si Operating at mm-Wave Frequencies

Y. Fouzi, E. Morvan, Y. Gobil, F. Morisot, Etienne Okada, S. Bollaert, N. Defrance

The performance of a CMOS-compatible SiN/AlN/GaN MIS-HEMT on 200mm Silicon substrate with high power capabilities in Ka band is evaluated. The devices show an F t /F max of 80/170 GHz for 2x50x0.15 µm 2 topology, along with outstanding and competitive large signal performance compared to GaN/SiC at...

2024 19th European Microwave Integrated Circuits Conference (EuMIC), Sep 2024, Paris, France. pp.303-306, ⟨10.23919/EuMIC61603.2024.10732270⟩. ⟨hal-04765665⟩

• COMM

Integrated high speed graphene photodetectors for sub-THz links in the D-Band

Alberto Montanaro, Alex Boschi, Guillaume Ducournau, Vaidotas Mišeikis, Stefano Soresi, Mario G.L. Frecassetti, Pascal Szriftgiser, Paola Galli, Henri Happy, Sergio Pezzini, Camilla Coletti, Marco Romagnoli, Vito Sorianello

We report on ultrafast photonic integrated detectors with bandwidth exceeding 180 GHz. The device is fabricated using a CVD-grown large angle twisted-bilayer graphene as active material. We demonstrate the use of this device as a photonic-aided D-band upconverter operating at 140 GHz carrier...

2024 19th European Microwave Integrated Circuits Conference (EuMIC), Sep 2024, Paris, France. pp.226-229, ⟨10.23919/EuMIC61603.2024.10732253⟩. ⟨hal-04765642⟩

• ART

Selective dynamic band gap tuning in metamaterials using graded photoresponsive resonator arrays

V.F. Dal Poggetto, D. Urban, F. Nistri, P.H. Beoletto, E. Descrovi, M. Miniaci, N. Pugno, F. Bosia, A. Gliozzi

The introduction of metamaterials has provided new possibilities to manipulate the propagation of waves in different fields of physics, ranging from electromagnetism to acoustics. However, despite the variety of configurations proposed so far, most solutions lack dynamic tunability, i.e. their...

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2024, 382 (2279), pp.20240150. ⟨10.1098/rsta.2024.0150⟩. ⟨hal-04674200⟩

• COMM

Characterization of Schottky Diodes at Wafer Level for Frequency Multipliers Applications Based on RF Coplanar Measurements

Hugo Bouillaud, Yannick Roelens, Etienne Okada, Jeanne Treuttel, Priyanka Mondal, Pierre Gellie, Mohammed Zaknoune, Guillaume Ducournau

While Schottky diode for THz generation have been extensively studied over last decades, technological developments are still required to reach the physical limits of these devices, such as breakdown voltage or sub-μm devices, but also efficient thermal management in particular before their...

2024 19th European Microwave Integrated Circuits Conference (EuMIC), Sep 2024, Paris, France. pp.387-390, ⟨10.23919/EuMIC61603.2024.10732752⟩. ⟨hal-04765465⟩

• THESE

Deep learning-assisted video list decoding in error-prone video transmission systems, Décodage par liste de vidéos assisté par apprentissage profond dans des systèmes de transmission vidéo sujets aux erreurs

Yujing Zhang

In recent years, video applications have developed rapidly. At the same time, the video quality experience has improved considerably with the advent of HD video and the emergence of 4K content. As a result, video streams tend to represent a larger amount of data. To reduce the size of these video..., Au cours des dernières années, les applications vidéo ont connu un développement rapide. Par ailleurs, l’expérience en matière de qualité vidéo s’est considérablement améliorée grâce à l’avènement de la vidéo HD et à l’émergence des contenus 4K. En conséquence, les flux vidéo ont tendance à...

Micro and nanotechnologies/Microelectronics. Université Polytechnique Hauts-de-France; Institut national des sciences appliquées Hauts-de-France, 2024. English. ⟨NNT : 2024UPHF0028⟩. ⟨tel-04751471⟩

• COMM

Ultra-broad Band RF Switches Based on Multilayers MoS2

S. Skrzypczak, C. Ligaud, Y. Bousbaa, Guillaume Ducournau, Dominique Vignaud, Etienne Okada, J. David-Vifflantzeff, S. Cadot, L. Le Van-Jodin, R. Gassilloud, G. Bigeard, A. Cresti, Yves Deblock, H. Happy, E. Pallecchi

2024 19th European Microwave Integrated Circuits Conference (EuMIC), Sep 2024, Paris, France. pp.214-217, ⟨10.23919/EuMIC61603.2024.10732884⟩. ⟨hal-04765570⟩

• COMM

Miniaturized 6 MHz phased-array ultrasound probe based on lead-free doped BaTiO3 piezoceramics

Claire Bantignies, Loïck Bonnet, Rémi Rouffaud, Monique Pouille, Ana Borta-Boyon, Franck Levassort

For many years, piezoelectric PZT-based materials for medical imaging have an exemption in the RoHS Directive that may not be reconducted in the future. Commercially and production-compatible products for substitution are still rare on the market. BaTiO3 is a well-known lead-free composition that...

2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS), Sep 2024, Taipei, Taiwan. pp.1-4, ⟨10.1109/UFFC-JS60046.2024.10793579⟩. ⟨hal-04947584⟩

• COMM

Multimodal Scanning Microwave and Electron Microscopy for nanoscale measurements under vacuum

Petr Polovodov, Clément Lenoir, Christophe Boyaval, Kamel Haddadi, Didier Théron

A Near-Field Scanning Microwave Microscope (NSMM) is operated inside a Scanning Electron Microscope (SEM). This experimental setup combines atomic force microscopy, microwave measurements (potentially up to 67 GHz), and SEM. With the piece of equipment, we investigate the potential benefits of...

54th European Microwave Conference (EuMC), Sep 2024, Paris, France. ⟨hal-04932615⟩