Publicaciones

• 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⟩

• N°spécial de revue/special issue

IDTC Special Issue. Newton's Principia & Newtonian Mechanics: Foundations, Heritage, Methodology, Editions, Popularization and Nature of Science Teaching

Raffaele Pisano, Paolo Bussotti, Gustavo Rodriguez Rocha

Foundations of Science, 2025. ⟨hal-04983576⟩

• Article dans une revue

Using Synapse Saturation in Spiking Neural Networks for Wake Up Receivers in Internet of Things Networks

Guillaume Marthe, Claire Goursaud, Laurent Clavier

Energy consumption remains a predominant constraint in numerous Internet of Things (IoT) applications, as microcontrollers typically exhibit excessively high power consumption. To address this issue, novel circuit designs have been introduced, and the utilization of spiking neurons and analog...

IEEE Internet of Things Journal, 2025, pp.1-1. ⟨10.1109/JIOT.2025.3599668⟩. ⟨hal-05229337⟩

• 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

Influence of passivation, doping and geometrical parameters on the avalanche breakdown of GaN SBDs

B. Orfao, R A Peña, B G Vasallo, S Pérez, J Mateos, T González

The breakdown of GaN-based Schottky barrier diodes associated with impact ionization events initiated by electrons injected by tunneling is physically analyzed by means of a Monte Carlo simulator self-consistently coupled with a two-dimensional solution of the Poisson equation. Simulations of a...

Journal of Computational Electronics, 2025, 24, pp.189. ⟨10.1007/s10825-025-02430-2⟩. ⟨hal-05376884⟩

• Article dans une revue

High Round-Trip Gain Piezoelectric-Capacitive Hybrid Micromachined Ultrasonic Transducer Based on Anodic Bonding Technology

Yan Wang, Wei-Jiang Xu, Ning Lv, Tao Wu, Jia Zhou, Junyan Ren

In this work, a piezoelectric-capacitive hybrid micromachined ultrasonic transducer (HMUT) with a high round-trip gain was developed to achieve superior pulse-echo imaging performance. Initially, an equivalent circuit model (ECM) and a finite element model (FEM) were constructed to design and...

IEEE Sensors Journal, 2025, pp.1-1. ⟨10.1109/JSEN.2025.3552403⟩. ⟨hal-05042499⟩

• Article dans une revue

Ultrasound-actuated microfluidic flow focusing allows control of bubble size and production rate

Sarah Cleve, Tim Segers, Michel Versluis, Guillaume Lajoinie

Microfluidic flow focusing is a promising tool for the creation of monodisperse microbubbles, such as ultrasound contrast agents. However, industrial-scale bubble production remains elusive due to a lack of control over bubble size and production rate in devices with paralellized flow-focusing...

Physical Review Applied, 2025, 23 (5), pp.L051004. ⟨10.1103/PhysRevApplied.23.L051004⟩. ⟨hal-05233678⟩

• 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

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

Carbon Nanotubes-Based Air-Filled Waveguide for D-Band Applications

Amit Kumar, Ankit Kumar Verma, Rong Tao Jiang, Jian Ping Zou, Chong Wei Tan, Dominique Baillargeat, Stephane Bila, Philippe Coquet, Beng Kang Tay

IEEE Microwave and Wireless Technology Letters, 2025, pp.1-4. ⟨10.1109/LMWT.2025.3635139⟩. ⟨hal-05405208⟩