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Affichage de 3231 à 3240 sur 16076

Article dans une revue

High-Q silicon nitride drum resonators strongly coupled to gates

Xin Zhou, Srisaran Venkatachalam, Ronghua Zhou, Hao Xu, Alok Pokharel, Andrew Fefferman, Mohammed Zaknoune, Eddy Collin

Silicon nitride (SiN) mechanical resonators with high quality mechanical properties are attractive for fundamental research and applications. However, it is challenging to maintain these mechanical properties while achieving strong coupling to an electrical circuit for efficient on-chip integration…

Nano Letters, 2021, 21 (13), pp.5738-5744. ⟨10.1021/acs.nanolett.1c01477⟩. ⟨hal-03263144⟩

Autre publication scientifique

Author Correction: Optoelectronic mixing with high-frequency graphene transistors (Nature Communications, (2021), 12, 1, (2728), 10.1038/s41467-021-22943-1)

A. Montanaro, W. Wei, D. de Fazio, U. Sassi, G. Soavi, P. Aversa, A.C. Ferrari, Henri Happy, P. Legagneux, Emiliano Pallecchi

The original version of this Article contained an error in Fig. 7 and Fig. 8a, c, in which the unit on the vertical axes incorrectly read “μS”. This has been corrected to “S” in both the PDF and HTML versions of the Article. © 2021 The Author(s).

2021, pp.3507. ⟨10.1038/s41467-021-23916-0⟩. ⟨hal-03542160⟩

Article dans une revue

Development of broadband high-frequency piezoelectric micromachined ultrasonic transducer array

Xu-Bo Wang, Le-Ming He, You-Cao Ma, Wen-Juan Liu, Wei-Jiang Xu, Jun-Yan Ren, Antoine Riaud, Jia Zhou

Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form and receive arbitrary acoustic beams for medical imaging. However, PMUT arrays have so far failed to combine…

Sensors, 2021, 21 (5), pp.1823. ⟨10.3390/s21051823⟩. ⟨hal-03260141⟩

Article dans une revue

Growth temperature effect on physical and mechanical properties of nitrogen rich InN epilayers

Z. Benzarti, T. Sekrafi, A. Khalfallah, Zahia Bougrioua, D. Vignaud, M. Evaristo, A. Cavaleiro

A set of N-polar InN epilayers has been grown at different temperatures by plasma-assisted molecular beam epitaxy (PA-MBE) on GaN/AlN/Al2O3(0001) templates. The purpose is to understand how the variation of crucial factor, such as the temperature, impacts the growth process and the resulting…

Journal of Alloys and Compounds, 2021, 885, pp.160951. ⟨10.1016/j.jallcom.2021.160951⟩. ⟨hal-03542616⟩

Communication dans un congrès

Bowl-shaped ZnO ultrasonic transducer for photoacoustic/ultrasonic multimode microscopy

J. Zhang, D. Zhao, D. Li, F. Tian, Wei-Jiang Xu, X. Wu

A bowl-shaped ultrasonic transducer is proposed for photoacoustic/ultrasonic multimode microscopy. The transducer uses zinc oxide (ZnO) as the piezoelectric material, which has a better electromechanical coefficient than flexible PVDF polymer and ensures the detection sensitivity. The ZnO film is…

2021 IEEE International Ultrasonics Symposium (IUS), Sep 2021, Xi'an, China. ⟨10.1109/IUS52206.2021.9593419⟩. ⟨hal-03541939⟩

Communication dans un congrès

An advanced ageing methodology for robustness assessment of normally-off AlGaN/GaN HEMT

F. Albany, A. Curutchet, N. Labat, F. Lecourt, E. Walasiak, H. Maher, Y. Cordier, N. Defrance, N. Malbert

The semi-on-state reliability of normally-off AlGaN/GaN high electron mobility transistor fabricated by fluorine ion plasma implantation technology is reported, focusing on an advanced dc step-stress methodology. By inserting a non-stressful fixed-bias step between each stress step, a reliable in-…

15th European Microwave Integrated Circuits Conference, EuMIC 2020, Jan 2021, Utrecht, Netherlands. 237-240, https://ieeexplore.ieee.org/abstract/document/9337362. ⟨hal-03362260⟩

Communication dans un congrès

Temperature Sensitivity of Surface Phononic Crystals modes (SPnC) based on Ni Pillars array deposited on LiNBO3

Abdelkrim Talbi, Ghizlane Boussatour, Aurelien Mazzamurro, Cécile Ghouila-Houri, Olivier Boumatar, Philippe Pernod

This work focuses on the theoretical and experimental investigation of acoustic waves sensors based on 2D Surface Phononic Crystals (PnC). We investigated the temperature coefficient of frequency (TCF) for surface localized modes in 2D PnCs composed of Ni pillars deposited on Y-cut LiNBO3 substrate…

2021 Symposium on Design, Test, Integration and Packaging of MEMS and MOEMS, DTIP 2021, Aug 2021, Paris, France. pp.1-3, ⟨10.1109/DTIP54218.2021.9568671⟩. ⟨hal-03541057⟩

Article dans une revue

The Map3k12 (Dlk)/JNK3 signaling pathway is required for pancreatic beta-cell proliferation during postnatal development

Mathie Tenenbaum, Valérie Plaisance, Raphael Boutry, Valérie Pawlowski, Cécile Jacovetti, Clara Sanchez-Parra, Hélène Ezanno, Julien Bourry, Nicole Beeler, Gianni Pasquetti, Valery Gmyr, Stéphane Dalle, Julie Kerr-Conte, François Pattou, Syu-Ichi Hirai, Romano Regazzi, Amélie Bonnefond, Philippe Froguel, Amar Abderrahmani

Unveiling the key pathways underlying postnatal beta-cell proliferation can be instrumental to decipher the mechanisms of beta-cell mass plasticity to increased physiological demand of insulin during weight gain and pregnancy. Using transcriptome and global Serine Threonine Kinase activity (STK)…

Cellular and Molecular Life Sciences, 2021, 78 (1), pp.287-298. ⟨10.1007/s00018-020-03499-7⟩. ⟨hal-03142227⟩

Communication dans un congrès

Bias-dependence of surface charge at low temperature in GaN self-switching diodes

E. Perez-Martin, I. Iniguez-De-La-Torre, T. Gonzalez, Christophe Gaquière, J. Mateos

In this work, with the help of a semi-classical two-dimensional Monte Carlo (MC) simulator, we study the DC current-voltage curves of Self-Switching Diodes (SSDs) fabricated on an AlGaN/GaN heterostructure from 100 K up to room temperature. Due to the very narrow channel of the SSDs, the presence…

13th Spanish Conference on Electron Devices, CDE 2021, Jun 2021, Sevilla, Spain. pp.90-93, ⟨10.1109/CDE52135.2021.9455737⟩. ⟨hal-03362256⟩

Article dans une revue

Modeling and experimental analysis of the mass loading effect on micro-ionic polymer actuators using step response identification

Iman Dadras, Sofiane Ghenna, Sébastien Grondel, Eric Cattan, Jaan Raik, Alvo Aabloo, Saoni Banerji

This paper presents a linear electrochemomechanical model for microscale ionic actuators. A frequency-domain approach is used to facilitate model interpretation, simplify model application, and accelerate the generation of actuator-specific models. A system comprising a micro PEDOT:PSS/PEO actuator…

Journal of Microelectromechanical Systems, 2021, 30 (2), pp.243-252. ⟨10.1109/JMEMS.2021.3060897⟩. ⟨hal-03162798⟩