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Affichage de 1261 à 1270 sur 15761

Article dans une revue

Major Improvement in the Cycling Ability of Pseudocapacitive Vanadium Nitride Films for Micro‐Supercapacitor

Aiman Jrondi, Gaëtan Buvat, Francisco de La Pena, Maya Marinova, Marielle Huvé, Thierry Brousse, Pascal Roussel, Christophe Lethien

Vanadium nitride film made using a thin film deposition technique is a promising electrode material for micro-supercapacitor applications owing to its high electrical conductivity and high volumetric and surface capacitance values in aqueous electrolyte. Nevertheless, the cycling stability has to…

Advanced Energy Materials, 2023, 13 (9), ⟨10.1002/aenm.202203462⟩. ⟨hal-03959151⟩

Article dans une revue

Assessment of Large Critical Electric Field in Ultra-wide Bandgap p- type Spinel ZnGa2O4

Zeyu Chi, Tamar Tchelidze, Corinne Sartel, Tsotne Gamsakhurdashvili, Ismail Madaci, Hayate Yamano, Vincent Sallet, Yves Dumont, Amador Pérez-Tomas, Farid Medjdoub, Ekaterine Chikoidze

The spinel Zinc Gallate ZnGa2O4 stands out among the emerging ultra-wide bandgap (~5eV) semiconductors as the ternary complex oxide with the widest gap where bipolar conductivity (electrons and holes) has been demonstrated. For power and energy electronic applications, a fundamental property of the…

Journal of Physics D: Applied Physics, 2023, 56 (10), pp.105102. ⟨10.1088/1361-6463/acbb14⟩. ⟨hal-03997451⟩

Communication dans un congrès

Two-photon responsive fluorophore-porphyrin biodegradable PMO nanoparticles for FRET-enhanced PDT and antibiotic encapsulation

Nicolas Bondon, Clement Charlot, Alexandre Barras, Christophe Nguyen, Lamiaa Ali, Denis Durand, Sabine Szunerits, Rabah Boukherroub, Nicolas Richy, Olivier Mongin, Nadir Bettache, Magali Gary-Bobo, Jean-Olivier Durand, Clarence Charnay

Herein, we report the successful multi-step syntheses of new two-photon responsive octupolar-shaped fluorophores with pendant propanol groups, abbreviated as F1 and F2. Mass spectrometry 1H NMR measurements confirmed they were pure isolated. This type compounds has already proven good…

4th PDT/PDD Symposium, Oct 2022, Nancy, France. pp.103391, ⟨10.1016/j.pdpdt.2023.103391⟩. ⟨hal-04257900⟩

Article dans une revue

Bio-inspired non self-similar hierarchical elastic metamaterials

M. Mazzotti, A. Foehr, O.R. Bilal, A. Bergamini, F. Bosia, C. Daraio, N.M. Pugno, M. Miniaci

Hierarchy provides unique opportunities for the design of advanced materials with superior properties that arise from architecture, rather than from constitutive material response. Contrary to the quasi-static regime, where the potential of hierarchy has been largely explored, its role in vibration…

International Journal of Mechanical Sciences, 2023, 241, pp.107915. ⟨10.1016/j.ijmecsci.2022.107915⟩. ⟨hal-03895821⟩

Article dans une revue

Portable Device for Multipurpose Research on Dendritic Yanson Point Contacts and Quantum Sensing

Andriy Savytskyi, Alexander Pospelov, Anna Herus, Volodymyr Vakula, Nataliya Kalashnyk, Eric Faulques, Gennadii Kamarchuk

Abstract Quantum structures are ideal objects by which to discover and study new sensor mechanisms and implement advanced approaches in sensor analysis to develop innovative sensor devices. Among them, one of the most interesting representatives is the Yanson point contact. It allows the…

Nanomaterials, 2023, 13 (6), pp.996. ⟨10.3390/nano13060996⟩. ⟨hal-04079717⟩

Article dans une revue

Temperature dependent model for the quasi-static stick–slip process on a soft substrate

Stefano Giordano

The classical Prandtl–Tomlinson model is the most famous and efficient method to describe the stick–slip phenomenon and the resulting friction between a slider and a corrugated substrate. It is widely used in all studies of frictional physics and notably in nanotribology. However, it considers a…

Soft Matter, 2023, 19 (9), pp.1813-1833. ⟨10.1039/d2sm01262f⟩. ⟨hal-04043292⟩

Article dans une revue

Stefan Weigl (Ed.): Breath analysis: an approach for smart diagnostics

Sabine Szunerits

Book’s topicBreath analysis is a multidisciplinary and innovative field of research, counting on the unique ability of the human lung to provide biofluids reflecting the health status of the person with every breath. Advancements in modern mass spectrometry (MS) instruments allow the encoding of…

Analytical and Bioanalytical Chemistry, 2023, 415 (8), pp.1395-1396. ⟨10.1007/s00216-023-04554-5⟩. ⟨hal-04044324⟩

Article dans une revue

Straightforward bias- and frequency-dependent small-signal model extraction for single-layer graphene FETs

Nikolaos Mavredakis, Anibal Pacheco-Sanchez, Wei Wei, Emiliano Pallecchi, Henri Happy, David Jiménez

We propose an explicit small-signal graphene field-effect transistor (GFET) parameter extraction procedure based on a charge-based quasi-static model. The dependence of the small-signal parameters on both gate voltage and frequency is precisely validated by high-frequency (up to 18 GHz) on-wafer…

Microelectronics Journal, 2023, 133, pp.105715. ⟨10.1016/j.mejo.2023.105715⟩. ⟨hal-03981909⟩

Article dans une revue

Flat band induced topological photonic Tamm states in stubbed structures: Theory and experiment

Soufyane Khattou, Yamina Rezzouk, Mohamed El Ghafiani, Madiha Amrani, Mohammed Elaouni, El Houssaine El Boudouti, Abdelkrim Talbi, Abdellatif Akjouj, Bahram Djafari-Rouhani

We provide theoretical and experimental evidence for the existence of topological Tamm states at the interface between two stubbed photonic crystals (PCs) as a function of the period and length of the stubs. Several works have addressed these states in the well-known Su-Schrieffer-Heeger model, a…

Physical Review B, 2023, 107 (12), 125405, 18 p. ⟨10.1103/PhysRevB.107.125405⟩. ⟨hal-04044518⟩

Communication dans un congrès

Thermal and statistical analysis of various AlN/GaN HEMT geometries for millimeter Wave applications

Nasri Said, Kathia Harrouche, F Medjdoub, N. Labat, Jean-Guy Tartarin, N. Malbert

Downscaling HEMT devices is nowadays substantial to allow their operation in the millimeter wave frequency domain. In this work, the electrical parameters of three different AlN/GaN structures featuring various GaN channel thicknesses were compared. After a DC electrical stabilization procedure, 96…

IEEE International Reliability Physics Symposium (IRPS 2023), Mar 2023, Monterey, CA, United States. ⟨10.1109/IRPS48203.2023.10117807⟩. ⟨hal-04125371⟩