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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⟩

Article dans une revue

Co-Effect of pH Control Agent and pH Value on the Physical Properties of ZnO Thin Films Obtained by Chemical Bath Deposition for Potential Application in Dye-Sensitized Solar Cells

Alphonse Déssoudji Gboglo, Mazabalo Baneto, Komlan Segbéya Gadedjisso-Tossou, Ognanmi Ako, Ayayi Claude Ahyi, Muthiah Haris, Muthusamy Senthilkumar, Kekeli N’konou, Bruno Grandidier, Katawoura Beltako, Komi Apélété Amou, Milohum Mikesokpo Dzagli

This study presents the influence of pH control agents and pH value on the physical properties of ZnO thin films obtained by chemical bath deposition. ZnO thin films were synthesized on glass substrates using precursor solutions of different pHs prepared from two bases: sodium hydroxide (NaOH) and…

Surfaces, 2025, 8 (3), pp.46. ⟨10.3390/surfaces8030046⟩. ⟨hal-05313801⟩

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⟩

Article dans une revue

100 Gbit/s and Beyond IEEE 802.15.3d Channelization Compatible THz Communications Enabled by a Broadband MUTC Photodiode

Ezgi Abacıoğlu, Abdu Subahan Mohammed, Jonas Tebart, Marcel Grzeslo, Tom Neerfeld, José Luis Fernández Estévez, Pascal Szriftgiser, Guillaume Ducournau, Andreas Stöhr

We present photonics-driven high data rate IEEE 802.15.3d compliant terahertz (THz) communication links operated at a center frequency of 280 GHz. We analyze wireless data transmission within selected single and dual channels of the IEEE 802.15.3d and assess the outcomes through additional back-to-…

IEEE Transactions on Terahertz Science and Technology, 2025, 15 (3), pp.389 - 399. ⟨10.1109/TTHZ.2025.3541824⟩. ⟨hal-04963122⟩

Article dans une revue

Drying Behavior of Flax Stems at Different Degrees of Dew Retting Under Simulated Rainfall: Implications for Smart Agriculture and Sensor Development

Ali Reda, Lionel Buchaillot, Steve Arscott

Dew retting of flax stems is a key agricultural process which facilitates fiber extraction from parent stems. If sensors are to be developed to monitor the degree of retting for optimal fiber extraction, then stem characteristics such as water uptake and loss need to be accurately known. Here, the…

Agriculture, 2025, 15 (4), pp.395. ⟨10.3390/agriculture15040395⟩. ⟨hal-04960263⟩