Publications

Type of document

Keywords

Author

Of

At

Affichage de 601 à 610 sur 16094

Article dans une revue

Thermal Enhancement of GaN Schottky Diodes Annealed at 600°C for High Power and High Temperature RF Applications

Beatriz Orfao, Amir Al Abdallah, Hugo Bouillaud, Guillaume Ducournau, Yannick Roelens, Malek Zegaoui, Mohammed Zaknoune

In this paper, we report the investigation of the thermal enhancement and the behavior of GaN Schottky diodes grown by metal organic chemical vapor deposition (MOCVD) on sapphire substrates for RF power applications and their potential to operate under extreme temperature. The Schottky barrier…

Electronics Letters, 2025, 61 (1), pp.e70307. ⟨10.1049/ell2.70307⟩. ⟨hal-05149241⟩

Article dans une revue

ScAlN/GaN-on-Si (111) HEMTs for RF applications

Seif El Whibi, Nagesh Bhat, Yassine Fouzi, Nicolas Defrance, Jean-Claude de Jaeger, Zahia Bougrioua, Florian Bartoli, Maxime Hugues, Yvon Cordier, Marie Lesecq

ScAlN is a promising barrier material for next generation RF high electron mobility transistors, outperforming AlGaN thanks a higher 2-dimensional electron gas (2DEG) density and a thinner barrier with a lower lattice mismatch with GaN. A sub-10 nm barrier ScAlN/GaN heterostructure, grown by…

Applied Physics Express, 2025, 18 (4), pp.046501. ⟨10.35848/1882-0786/adc5db⟩. ⟨hal-05008937⟩

Article dans une revue

Topological Berry Antenna on a Silicon Chip for Terahertz Wireless Communication

Sonu Kumar, Ridong Jia, Yi Ji Tan, Thomas Caiwei Tan, Pascal Szriftgiser, G Arun Kumar, Guillaume Ducournau, Arokiaswami Alphones, Ranjan Singh

Nonzero Berry curvature is central to the existence of topological edge states in electronic and photonic valley-Hall systems. While manipulating the Berry curvature in condensed matter systems is challenging, valley-Hall topological photonics offer unprecedented control, where the broken spatial…

Advanced Photonics Research, In press, ⟨10.1002/adpr.202500123⟩. ⟨hal-05131748⟩

Article dans une revue

Strategies to achieve efficiencies of over 19% for organic solar cells

Xingchi Xiao, Malika Chalh, Zhi Rong Loh, Esther Mbina, Tao Xu, Roger C. Hiorns, Yujia Li, Maloy Das, Kekeli N'Konou, Leonard W T Ng

Organic solar cells are a promising system for generating clean energy. Recent advancements, particularly in non-fullerene acceptors such as Y6 and its derivatives, along with the development of innovative polymer donors, have significantly enhanced the power conversion efficiency of organic solar…

Cell Reports Physical Science, 2025, 6 (1), pp.102390. ⟨10.1016/j.xcrp.2024.102390⟩. ⟨hal-04932307⟩

Communication dans un congrès

Inverted BER Trends for Energy-Detected GRSM-MQAM Massive MIMO Downlink

Oshin Daoud, Haïfa Farès, Yahia Medjahdi, Laurent Clavier, Amor Nafkha

This work investigates Generalized Receiver Spatial Modulation (GRSM) in a massive MIMO downlink scenario over millimetre wave channels. While GRSM enhances spectral efficiency (SE) and reduces power consumption, indexing additional bits using the spatial dimension increases the vulnerability to…

2025 21th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Oct 2025, Marrakesh, Morocco. pp.1-7, ⟨10.1109/wimob66857.2025.11257439⟩. ⟨hal-05395480⟩

Article dans une revue

Toward Smart Probes for mmW On-Wafer Measurements: Advanced Packaging Using Laser Micromachining of Glass

Maya Alawar, Victor Fiorese, Sylvie Lépilliet, Daniel Gloria, Guillaume Ducournau, Emmanuel Dubois

This article introduces the development of groundsignal-ground (GSG) probes for on-wafer active measurements, fabricated using femtosecond laser micromachining with a resolution between 5 and 10 µm. The probes are made from a 100 µm-thick Schott AF32 glass substrate bonded to a 10 µm-thick nickel…

IEEE Transactions on Microwave Theory and Techniques, 2025, 73 (11), pp.8544-8555. ⟨10.1109/TMTT.2025.3595651⟩. ⟨hal-05214588⟩

Communication dans un congrès

A Tensor-Based Modulation Scheme with Hybrid Optimization for Unsourced Random Access

Ala Baccar, Alexis Decurninge, Sofiane Kharbech, Rima Khouja, Eric Pierre Simon, Joumana Farah

<div><p>This paper extends the idea of tensor-based modulation (TBM) for unsourced random access by introducing a new small sub-constellation, enabling a hybrid continuous-discrete optimization approach on the tensor factors. This approach enhances the detection process and extends the…

EUSIPCO 2025, Sep 2025, Palerme (Italie), Italy. ⟨hal-05136805⟩

Communication dans un congrès

PEPR ADICT: Fabrication of RF switches based on MoS$_2$ and WS$_2$

J. Fadel, S. Skrzypczak, Y. Bousbaa, L. Le Van-Jodin, M. Jamet, P. Trousset, B. Reig, B. Dlubak, P. Seneor, E. Carré, X. Wallart, E. Pallecchi, H. Happy

In the framework of the ADICT project, the partner IEMN-CARBON aims to produce components based on 2D materials [1-3], for targeted PEPR projects. The aim is to extract their electrical properties and propose applications for high-frequency analogue electronics. The first components to be explored…

Journées scientifiques du PEPR électronique, Mar 2025, Paris, France. ⟨hal-05010227⟩

Article dans une revue

A Universal Implementation Approach for Multivalued Logic Gates Based on Negative Transconductance in Series-Connected Two-Dimensional Transistors

Guangchao Zhao, Wanting Wen, Keyi Liao, Philippe Coquet, Xingli Wang, Mingqiang Huang, Beng Kang Tay

Multiple-valued logic (MVL) is highly desired for algebra, logic, and artificial intelligence due to its higher information density. However, its practical adoption has been hindered for decades by extensive hardware requirements. Two-dimensional (2D) materials with exceptional electronic…

ACS Nano, 2025, 19 (27), pp.24961-24971. ⟨10.1021/acsnano.5c04182⟩. ⟨hal-05166793⟩

Communication dans un congrès

Integrated Optoelectronic Mixer with a Micromachined Silicon Coplanar Probe for Wideband On-Wafer Testing of Millimeter-Wave and THz Components

S. Islam, L. Kherouz, Victor Merupo, L. Frein, S. Bouhier, Flavie Braud, Christophe Boyaval, Christophe Coinon, J.-F. Lampin, Y Deblock, Sophie Eliet, E. Okada, Sylvie Lepilliet, Q. Fornasiero, G. Di Gioia, G. Loas, S. Arscott, E Peytavit

We present the design and fabrication of a wideband signal analysis probe system for on-wafer testing millimeter-wave and THz electronic components. This probe system is based on the development of an optoelectronic mixer based on a low-temperature-grown GaAs microcavity photoconductor integrated…

2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Aug 2025, Helsinki, Finland. pp.1-2, ⟨10.1109/irmmw-thz61557.2025.11319740⟩. ⟨hal-05489566⟩