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Électronique flexible et portable en utilisant de matériaux 1D-2D, Flexible and wearable electronics using 1D-2D materials

Fawzi Bouakkaz

Au cours des dernières années, l'électronique flexible et portable a suscité un intérêt croissant en raison d’une part de sa capacité à fonctionner de manière fiable même lorsqu'elle subit des déformations importantes, et d’autre part pour ses nombreuses applications potentielles. L'…, Over the past years, flexible and wearable electronics have attracted growing interest due to their ability to function reliably even when undergoing significant deformation, as well as their wide range potential applications. Inkjet printing is one of the most promising techniques for large-area…

Physique [physics]. Université de Lille, 2026. Français. ⟨NNT : ⟩. ⟨tel-05778698⟩

Pré-publication, Document de travail

Modulations of the photoswitching performances of azobenzene-based molecular devices by the π-conjugated spacers.

Laurette-Apolline Jerro, Imen Hnid, Imane Arbouch, Yassine Ali, David Guérin, Alexis Elias, Colin van Dyck, Lionel Sanguinet, Jérôme Cornil, Stéphane Lenfant, Philippe Blanchard, Dominique Vuillaume

The nature of the π-conjugated spacer is a key element to tune the electrical conductance and optical switching properties of metal-spacer-azobenzene-metal molecular devices. We report that the azobenzene-based molecular junctions with a thiophene or a phenylthiophene spacer exhibit a high cis/…

2026. ⟨hal-05800098⟩

Pré-publication, Document de travail

Evolution of dense liquid marbles under light tapping

Amaelle Sprocq, Théo Dhoudain, Alexis Duchesne, Guillaume Lagubeau

Liquid marbles interface is composed by a dense network of grains trapped by capillarity at their surface. The mix of capillarity and granular character make their interfaces remarkable, allowing non wetting, high mobility and strong robustness which are a basis for numerous applications. A…

2026. ⟨hal-05796937⟩

Pré-publication, Document de travail

Competing regimes of charge-carrier and impurity scattering limiting phonon heat conduction in heavily-doped silicon

Raja Sen, Juan Carlos Acosta Abanto, Mélanie Brouillard, Séverine Gomès, Jean-François Robillard, Alessandro Ciavatta, Lorenzo Paulatto, Nathalie Vast, Jérôme Saint-Martin, Jelena Sjakste, Pierre-Olivier Chapuis

With respect to undoped semiconductors, thermal transport by phonons is limited by two additional mechanisms when doping increases: charge-carrier and impurity scattering. Previous works provided contradicting conclusions on the dominant doping-induced scattering mechanism in silicon. In this work…

2026. ⟨hal-05451267v2⟩

Article dans une revue

Vibration and sound of two padel rackets compared in playing conditions

Thomas Daney, Delphine Chadefaux, Jean-Loïc Le Carrou, Arthur Paté

In an attempt to better understand the vibratory and acoustic aspects of ball/racket impact as experienced by padel players, an experimental investigation was carried out with the aim of comparing the vibration and sound produced by a ball impacting two different padel rackets. These two rackets…

Sports Engineering, 2026, 29 (2), pp.35. ⟨10.1007/s12283-026-00565-4⟩. ⟨hal-05836588⟩

Article dans une revue

Effect of Residual Glass Fraction on the Crystallization Behavior and Thermomechanical Properties of STS (Strontium Titanium Silicate) Glass-Ceramics

Oussama Zwein, Maurice Gonon, Nicolas Preux, Sandra Abdelouhab, Enrique Juste, Ridvan Yildiz, Marc Duquennoy

Sr2TiSi2O8 (STS) polar glass-ceramics are promising piezoelectric materials for high-temperature surface acoustic wave (SAW) devices, provided that the orientation of the STS polar axis and the thermomechanical stability of the substrate can be controlled. In this work, the effect of the residual…

Ceramics, 2026, 9 (10), pp.114. ⟨10.3390/ceramics9100114⟩. ⟨hal-05798928⟩

Article dans une revue

Enhancement of perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya interaction in cobalt-based systems through interfacial engineering

M. Belmeguenai, T. Al Maawali, A. Bendjaballah, W. Fotso, M. G. Hafiz, M. Ramu, S. M. Chérif, N. Tiercelin, M. S. Gabor, Y. Roussigné, S. N. Piramanayagam, R. Sbiaa

Interfacial engineering provides an effective route to tailor chiral magnetic interactions in thin-film heterostructures relevant for spintronic applications. In this work, we investigate the influence of top capping layers on perpendicular magnetic anisotropy (PMA) and interfacial Dzyaloshinskii-…

Physical Review Applied, 2026, 26 (4), pp.044030. ⟨10.1103/pz1p-3rh1⟩. ⟨hal-05836412⟩

Article dans une revue

Spatiotemporal terahertz emission nanoscopy of spintronic photocurrent

Felix Paries, Reza Rouzegar, Jiahua Cai, Mingcong Dai, Felix Selz, Johanna Koelbel, Geoffrey Lezier, Nicolas Tiercelin, Daniel Molter, Daniel M Mittleman, Georg von Freymann, Xiaojun Wu, Tom S Seifert

Capturing ultrafast spin and charge photocurrents on nanoscopic scales is essential for fundamental research in physics and engineering, as well as for future applications, such as novel spin-orbitronic devices. Accessing the fundamental dynamics driven by changes in electronic energy, linear…

Light: Science and Applications, 2026, 15, ⟨10.1038/s41377-026-02468-2⟩. ⟨hal-05835284⟩