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Article dans une revue

Influence of ion implantation on the charge storage mechanism of vanadium nitride pseudocapacitive thin films

Etienne Le Calvez, Dmitri Yarekha, Laurent Fugère, Kévin Robert, Marielle Huvé, Maya Marinova, Olivier Crosnier, Christophe Lethien, Thierry Brousse

The influence of microstructural or structural defects is seldom investigated in pseudocapacitive electrodes. Indeed, most of the synthesized materials do present defects at every scales which contribute to the improvement of the charge storage. In this study VN thin films were deposited by...

Electrochemistry Communications, 2021, 125, pp.107016. ⟨10.1016/j.elecom.2021.107016⟩. ⟨hal-03266225⟩

Communication dans un congrès

Fabrication of μLEDS for light fidelity optical transmission

Karim Dogheche, Bandar Alshehri, Abderrahim Ramdane, El Hadj Dogheche, Namarig Mohemed Taha Abdelrahman Ahmed

The recent years have announced the emergence of novel photonic technologies based on III-nitrides semiconductors. Gathering the progress in materials maturity and the advance in manufacturing process, Solid-State Lighting based upon GaN-based light-emitting diodes (LEDs) has emerged as one the...

International black sea coastline countries symposium-VI, Apr 2021, Giresun, Turkey. pp.365-369. ⟨hal-03320916⟩

Article dans une revue

A memory reliability enhancement technique for multi bit upsets

Alexandre Chabot, Ihsen Alouani, Reda Nouacer, Smail Niar

Technological advances allow the production of increasingly complex electronic systems. Nevertheless, technology and voltage scaling increased dramatically the susceptibility of new devices not only to Single Bit Upsets (SBU), but also to Multiple Bit Upsets (MBU). In safety critical applications,...

Journal of Signal Processing Systems, 2021, 93 (4), pp.439-459. ⟨10.1007/s11265-020-01603-5⟩. ⟨hal-03322496⟩

Article dans une revue

Adaptive NOMA in time-varying wireless networks with no CSIT/CDIT relying on a 1-bit feedback

Hajar El Hassani, Anne Savard, E Veronica Belmega

In this letter, the outage performance of a two user downlink non-orthogonal multiple access (NOMA) time varying network without any knowledge on the channel state or distribution at the base station (BS) is investigated. Building on reinforcement learning techniques and, more precisely, on multi-...

IEEE Wireless Communications Letters, 2021, 10 (4), pp.750-754. ⟨10.1109/LWC.2020.3042742⟩. ⟨hal-03038209⟩

Article dans une revue

Design and characterization of (140-220) GHz frequency compensated power detector

Issa Alaji, Sylvie Lepilliet, Daniel Gloria, Guillaume Ducournau, Christophe Gaquière

This article presents the design and characterization of a real-time frequency-compensated power detector (PD), based on NMOS transistor, integrated in SiGe 55-nm BiCMOS technology from STMicroelectronics, and dedicated to on-chip power detection in the G-band frequencies. An innovative simple...

IEEE Transactions on Microwave Theory and Techniques, 2021, 69 (4), pp.2352-2356. ⟨10.1109/TMTT.2021.3062054⟩. ⟨hal-03390228⟩

Article dans une revue

Lesions Detection of Multiple Sclerosis in 3D Brian MR Images by Using Artificial Immune Systems and Support Vector Machines

Amina Merzoug, Nacéra Benamrane, Abdelmalik Taleb-Ahmed

This paper presents a segmentation method to detect multiple sclerosis (MS) lesions in brain MRI based on the artificial immune systems (AIS) and a support vector machines (SVM). In the first step, AIS is used to segment the three main brain tissues white matter, gray matter, and cerebrospinal...

International Journal of Cognitive Informatics and Natural Intelligence, 2021, 15 (2), pp.97-110. ⟨10.4018/IJCINI.20210401.oa8⟩. ⟨hal-03558161⟩

Article dans une revue

Active stabilization of terahertz semiconductor dual-comb laser sources employing a phase locking technique

Yiran Zhao, Ziping Li, Kang Zhou, Xiaoyu Liao, Wen Guan, Wenjian Wan, Sijia Yang, J. Cao, Dong Xu, S Barbieri, Hua Li

Dual-comb sources with equally spaced and low phase noise frequency lines are of great importance for high resolution spectroscopy and metrology. In the terahertz frequency range, electrically pumped semiconductor quantum cascade lasers (QCLs) are suitable candidates for frequency comb and dual-...

Laser and Photonics Reviews, 2021, 15 (4), pp.2000498. ⟨10.1002/lpor.202000498⟩. ⟨hal-03207715⟩

Article dans une revue

Dispersion characteristics of guided waves in functionally graded anisotropic micro/nano-plates based on the modified couple stress theory

Cancan Liu, Jiangong Yu, Wei-Jiang Xu, Xiaoming Zhang, Xianhui Wang

In this paper, the acoustic wave motion characteristics of Lamb and SH waves in functionally graded (FG) anisotropic micro/nano-plates are studied based on the modified couple stress theory. A higher efficient computational approach, the extended Legendre orthogonal polynomial method (LOPM) is...

Thin-Walled Structures, 2021, 161, pp.107527. ⟨10.1016/j.tws.2021.107527⟩. ⟨hal-03169434⟩

Communication dans un congrès

[Invited] Pushing the limit of lithography for patterning two-dimensional lattices in III-V semiconductor quantum wells

Nathali Alexandra Franchina Vergel, C. Post, Francois Vaurette, Yannick Lambert, Dmitri Yarekha, Christophe Coinon, G. Fleury, T.S. Kulmala, T. Xu, L. Desplanque, X. Wallart, D. Vanmaekelbergh, Christophe Delerue, B. Grandidier

Building two-dimensional lattices in semiconductor quantum-wells offers the prospect to design distinct energy-momentum dispersions, including conical intersections and nondispersive bands. Here, we compare three lithographic patterning methods, e-beam lithography, block copolymer lithography and...

5th IEEE Electron Devices Technology & Manufacturing Conference, EDTM 2021, Apr 2021, Chengdu, China. pp.1-3, ⟨10.1109/EDTM50988.2021.9420884⟩. ⟨hal-03261329⟩

Article dans une revue

Simultaneous photocatalytic Cr(VI) reduction and phenol degradation over copper sulphide-reduced graphene oxide nanocomposite under visible light irradiation: Performance and reaction mechanism

Yacine Cherifi, Alexandre Barras, Ahmed Addad, Baghdad Ouddane, Pascal Roussel, Ahcène Chaouchi, Sabine Szunerits, Rabah Boukherroub

The contamination of water by synthetic organic molecules and trace metals is a growing challenge, in spite of the enormous research efforts being made in the field of water treatment. In this study, reduced graphene oxide-copper sulphide (rGO-CuS) nanocomposites of different rGO/CuS (2/1, 1/1, 1/2...

Chemosphere, 2021, pp.128798. ⟨10.1016/j.chemosphere.2020.128798⟩. ⟨hal-03089826⟩