Publications

• Article dans une revue

Transmorphic epitaxial growth of AlN nucleation layers on SiC substrates for high-breakdown thin GaN transistors

Jun Lu, Jr-Tai Chen, Martin Dahlqvist, Riad Kabouche, F Medjdoub, Johanna Rosen, Olof Kordina, Lars Hultman

ABSTRACT Interfaces containing misfit dislocations deteriorate electronic properties of heteroepitaxial wide bandgap III-nitride semiconductors grown on foreign substrates, as a result of lattice and thermal expansion mismatches and incompatible chemical bonding. We report grain-boundary-free AlN…

Applied Physics Letters, 2019, 115 (22), pp.221601. ⟨10.1063/1.5123374⟩. ⟨hal-02400602⟩

• Communication dans un congrès

Robust and Simple Log-Likelihood Approximation for Receiver Design

Yasser Mestrah, Anne Savard, Alban Goupil, Guillaume Gelle, Laurent Clavier

Wireless Communications and Networking Conference (WCNC), 2019, Marrakesh, Morocco. pp.1-6, ⟨10.1109/WCNC.2019.8886114⟩. ⟨hal-02503135⟩

• Communication dans un congrès

Mesure indirecte des performances de LLR approché

Yasser Mestrah, Anne Savard, Alban Goupil, Guillaume Gelle, Laurent Clavier

Les réseaux sans fils sont de plus en plus denses et hétérogènes, entraînant l’accroissement très significatif de l’impact des interférences. De nombreux travaux ont montré la nature impulsive de cette interférence et la nécessité de modifier le calcul de la vraisemblance nécessaire au décodage.…

GRETSI, 2019, Lille, France. ⟨hal-02962832⟩

• Article dans une revue

Optimization of surface treatment on MEMS probes for single-cell capture and release

Kensaku Hayashi, Momoko Kumemura, Shohei Kaneda, Vivek Menon, Laurent Jalabert, Saeko Tachikawa, Mehmet Tarhan, Teruo Fujii, Beomjoon Kim, Hiroyuki Fujita

Micro-electromechanical systems (MEMS) tweezers developed for the trapping and characterization of bio molecules such as DNA are also capable of cell handling, which will enable further application involving single cell characterization. However, cellular adhesion to Si tweezers surfaces can…

Sensors and Materials, 2019, 31 (9), pp.2873. ⟨10.18494/SAM.2019.2322⟩. ⟨hal-03153240⟩

• Article dans une revue

On evaporation via an inclined rotating circular lift-off shadow or stencil mask

S. Arscott

A mathematical model is developed to calculate the topography of a mesa obtained by evaporation of matter via inclined rotating lift-off shadow masking. Two types of masking are considered: a circular mask and a cylindrical mask-the latter involves sidewall deposition. The model is able to predict…

Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures, 2019, 37 (1), pp.011602. ⟨10.1116/1.5057404⟩. ⟨hal-02345344⟩

• Article dans une revue

An autonomous low-power management system for energy harvesting from a miniaturized spherical piezoelectric transducer

Daher Diab, Fabrice Lefebvre, Georges Nassar, Nikolay Smagin, Samih Isber, Fawaz El Omar, Adnan Naja

A new spherical vibrational energy harvesting device with an additional low power management circuit for optimizing the power transfer from the mechanical vibrations to a storage capacitor is presented. The device is devoted to underwater wireless sensor network applications due to its broadband…

Review of Scientific Instruments, 2019, 90 (7), pp.075004. ⟨10.1063/1.5084267⟩. ⟨hal-03139114⟩

• Article dans une revue

Design and Implementation of Ternary Logic Integrated Circuits by Using Novel Two-Dimensional Materials

Mingqiang Huang, Xingli Wang, Guangchao Zhao, Philippe Coquet, Bengkang Tay

With the approaching end of Moore’s Law (that the number of transistors in a dense integrated circuit doubles every two years), the logic data density in modern binary digital integrated circuits can hardly be further improved due to the physical limitation. In this aspect, ternary logic (0, 1, 2)…

Applied Sciences, 2019, 9 (20), pp.4212. ⟨10.3390/app9204212⟩. ⟨hal-03091459⟩

• Article dans une revue

Topological valley, pseudospin, and pseudospin-valley protected edge states in symmetric pillared phononic crystals

Wei Wang​, Bernard Bonello, Bahram Djafari-Rouhani, Yan Pennec

We present a symmetric double-sided pillared phononic crystal (PPnC) where either quantum spin Hall effect (QSHE) or quantum valley Hall effect (QVHE) is emulated by solely imposing different perturbations to the geometry. When occurring at the deep subwavelength scale, the valley-polarized edge…

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2019, 100 (14), pp.140101. ⟨10.1103/PhysRevB.100.140101⟩. ⟨hal-02323713⟩

• Article dans une revue

Modulation of localized surface plasmon resonances of a silver nanoparticle array upon the presence of MoS2 coatings or underlying thin films

Mohamed El Barghouti, Abdellah Mir, Abdellatif Akjouj, Sabine Szunerits

There has been recently a growing interest in studying light-matter coupling using supported metallic nanostructures arranged into periodic arrays. The influence on the layer thickness of two-dimensional materials such as molybdenum disulfide MoS2 on the plasmonic behaviour of these arrays has…

Optik, 2019, 179, pp.819-827. ⟨10.1016/j.ijleo.2018.10.208⟩. ⟨hal-03148968⟩

• Article dans une revue

Towards all-solution-processed top-illuminated flexible organic solar cells using ultrathin Ag-modified graphite-coated poly(ethylene terephthalate) substrates

Shuanglong Wang, Yi Zhao, Hong Lian, Cuiyun Peng, Xuyong Yang, Yulai Gao, Yan Peng, Weixia Lan, Omar Ibrahim Elmi, Didier Stiévenard, Bin Wei, Furong Zhu, Tao Xu

All-solution-processed flexible organic solar cells (FOSCs) with high power conversion efficiency (PCE) are the prerequisite for application in low-cost, large-area, flexible, photovoltaic devices. In this work, high-performance, top-illuminated FOSCs using ultrathin Ag-modified graphite-coated…

Nanophotonics, 2019, 8 (2), pp.297-306. ⟨10.1515/nanoph-2018-0189⟩. ⟨hal-03153242⟩