Publications

• Communication dans un congrès

Record Rₒₙ-BV Trade-Off and Scalable Heterogeneous Integration in Field-Plate-Free GaN-on-Sapphire HEMTs

Adrien Bidaud, Abdelkhalek Sefssafi, L. Ben Hammou, Etienne Okada, Katir Ziouche, A. Paranjpe, Farid Medjdoub

CS mantech, May 2026, Portland, United States. ⟨hal-05776253⟩

• Communication dans un congrès

Ultra-Low-Power Neuromorphic Spike Detector for Large-Scale Neural Interfaces

Louis Regnacq, Hicham Lahrach, Anna Kobzar, Nicolas Lefoulon, Rédha Kassi, Pascal Mariot, A. Cappy, Christel Vanbesien, Alexis Vlandas, Christophe Loyez, Virginie Hoel

This work presents an ultra-low-power analog neuromorphic architecture for spike detection in large-scale neural interfaces. The goal is to reduce the amount of data transmitted by the implant by sending only detected spike timestamps. The proposed approach is inspired by sensory neurons connected…

Journée CORTICO 2026, COllectif pour la Recherche Transdisciplinaire sur les Interfaces Cerveau-Ordinateur, May 2026, Villeneuve d’Ascq (Lille), France. ⟨hal-05636416⟩

• Communication dans un congrès

Enhancing RF Power and Efficiency through Trapping Mitigation in Buffer-Free QuanFINE GaN HEMT

Anders Lundskog, Lyes Ben Hammou, François Grandpierron, Elodie Carneiro, Katir Ziouche, Etienne Okada, Jr-T. Chen, Farid Medjdoub

<div><p>We investigated AlGaN/GaN HEMTs fabricated on SweGaN's buffer-free QuanFINE GaN-on-SiC platform to mitigate trapping and enhance RF performance. Two epitaxial designs were compared: a baseline structure and one incorporating a 100 nm Al0.2Ga0.8N back barrier. Both share an…

CS MANTECH, May 2026, Portland (Oregon), United States. ⟨hal-05776255⟩

• Article dans une revue

Stabilization of the Li3PS4/Li interface by a 4 nm Al2O3 coating studied by in situ HAXPES

Lucía Pérez Ramírez, Jonas Sottmann, Benjamin Hennequart, Muath Radi, Maxime Hallot, Christophe Lethien, Lenart Dudy, Jean-Pascal Rueff, Rémi Dedryvère

Li-metal based All-Solid-State Batteries (ASSBs) offer a safer and higher-energy alternative to conventional lithium-ion batteries, but their performances are hindered by interfacial instability between the solid-state electrolyte (SSE) and lithium metal electrode. To stabilize the interface, a…

Materials Today Communications, 2026, 53, pp.115388. ⟨10.1016/j.mtcomm.2026.115388⟩. ⟨hal-05624715⟩

• Article dans une revue

Realizing high performance flexible multilevel memory based on charge storage in Au nanoparticles and electrets

Shuo Li, Khaoula Ferchichi, Hui Zhang, You Yin, Kamal Lmimouni

In this paper, we report on the pentacene-based field-effect transistors (FETs) and flexible nano-floating gate-based transistor memory (NFGM) devices that were fabricated on ultra-flexible 2 μm Parylene C, deposited on different substrates. All thin-film layers can be deposited at low temperatures…

Japanese Journal of Applied Physics, 2026, 65 (9), pp.09SP10. ⟨10.35848/1347-4065/ae6349⟩. ⟨hal-05666638⟩

• Article dans une revue

Investigation of thickness dependences of interfacial magnetic properties of ( Pt / Co / W ) 5 -based multilayers

R. Sbiaa, W. Fotso, M. Hafiz, M. Ramu, Nicolas Tiercelin, S. Chérif, A. Lisfi, Y. Roussigné, S. Piramanayagam, M. Belmeguenai

We investigated the thickness dependences of the interfacial Dzyaloshinskii-Moriya interaction (DMI) and the perpendicular magnetic anisotropy (PMA) in (Pt/Co/W)5 multilayers by systematically varying the Co (from 1.3 to 1.9 nm) and W (from 0 to 3 nm) layer thicknesses. Vibrating sample…

Physical Review Materials, 2026, 10 (5), pp.054407. ⟨10.1103/mgb4-k39t⟩. ⟨hal-05639912⟩

• Communication dans un congrès

Micro-Nanotechnologies for Structuring Silicon and Polymers for Thermal Comfort

Stefan Sandu, Malika Chalh, Mohamed Boutghatin, Dmitri Yarekha, Jérémy Odent, Michèle Carette, Yan Pennec, Vincent Thomy

28th Edition of the National Bioengineering Conference for Students and Young Researchers (BENG Conference 2026), May 2026, Iasi, Romania. Workshop oral presentation. ⟨hal-05619303⟩

• Communication dans un congrès

Micro-Nanotechnologies for Structuring Silicon and Polymers for Thermal Comfort

Stefan Sandu, Malika Chalh, Mohamed Boutghatin, Dmitri Yarekha, Jérémy Odent, Michèle Carette, Yan Pennec, Vincent Thomy

National Bioengineering Conference for Students and Young Researchers–BENG Conference 2026, May 2026, Roumanie, Romania. ⟨hal-05786237⟩

• Communication dans un congrès

Electro-thermal breakdown in p-NiO/n-Ga2O3 heterojunction power diodes: evidence for the role of heat extraction via sapphire

S. Kubsky, Z. Berger, M. Chevrot, D. Rogers, V. Sandana, F. Hosseini Teherani, N. Defrance, M. Lesecq, Z. Bougrioua, M. Razeghi

Gallium oxide (Ga₂O₃) is attracting strong interest for next-generation power electronics due to its ultra-wide bandgap and large critical breakdown field; however, device performance is frequently constrained by self-heating arising from its relatively low and anisotropic thermal conductivity. In…

Oxide-based Materials and Devices XVII, Jan 2026, San Francisco, United States. pp.59, ⟨10.1117/12.3107298⟩. ⟨hal-05765091⟩

• Thèse

Système photoacoustique pour l’analyse sélective des COV : vers un suivi efficace de la réponse thérapeutique du cancer du sein, Photoacoustic system for selective analysis VOC analysis : towards effective monitoring of breast cancer therapeutic reponse

Salah Mohand Moussa

Cette thèse porte sur le développement et l’optimisation de systèmes photoacoustiques dédiés à la détection sélective de composés organiques volatils (COV), dans la perspective d’applications biomédicales, notamment pour le suivi non invasif du cancer du sein. Les COV, considérés comme des…, This thesis focuses on the development and optimization of photoacoustic systems dedicated to the selective detection of volatile organic compounds (VOCs), with a view to biomedical applications, particularly for the non-invasive monitoring of breast cancer. VOCs, considered potential biomarkers of…

Micro et nanotechnologies/Microélectronique. Centrale Lille Institut, 2026. Français. ⟨NNT : 2026CLIL0009⟩. ⟨tel-05796754⟩