Publicaciones

• Chapitre d'ouvrage

20 - Omnidirectional Bandgaps and Selective Transmission in Layered Photonic Crystals

Abdellatif Akjouj, El Houssaine El Boudouti, L. Dobrzynski, Bahram Djafari-Rouhani

It has been shown that a one-dimensional periodic structure such as a layered photonic crystal can exhibit the property of omnidirectional reflection, which means that any incident wave launched from the vacuum (or from a substrate) will undergo a total reflection at the layered photonic crystal...

Photonics, Part Three: Photonic Materials, Elsevier, pp.569-586, 2021, 978-0-12-819388-4. ⟨10.1016/B978-0-12-819388-4.00031-9⟩. ⟨hal-03360011⟩

• Article dans une revue

Asymmetric micro-supercapacitors based on electrodeposited Ruo2 and sputtered VN films

Bouchra Asbani, Kevin Robert, Pascal Roussel, Thierry Brousse, Christophe Lethien

Research on micro-supercapacitors remains one of the most important activities in the area of electrochemical energy storage for powering smart and miniaturized electronic devices. Here we design an asymmetric micro-supercapacitor (A-MSC) combining sputtered vanadium nitride film (VN) and...

Energy Storage Materials, 2021, 37, pp.207-214. ⟨10.1016/j.ensm.2021.02.006⟩. ⟨hal-03198793⟩

• Communication dans un congrès

Electronic properties of selective area grown semiconductor heterostructures

N. Peric, Corentin Durand, Louis Biadala, Maxime Berthe, L. Desplanque, V. Dubrovskii, X. Wallart, B. Grandidier

Journées du GDR Nanosciences with near-field microscopy under ultra high vacuum 2021, Nov 2021, Toulouse, France. ⟨hal-03606187⟩

• Article dans une revue

Growth temperature effect on physical and mechanical properties of nitrogen rich InN epilayers

Z. Benzarti, T. Sekrafi, A. Khalfallah, Zahia Bougrioua, D. Vignaud, M. Evaristo, A. Cavaleiro

A set of N-polar InN epilayers has been grown at different temperatures by plasma-assisted molecular beam epitaxy (PA-MBE) on GaN/AlN/Al2O3(0001) templates. The purpose is to understand how the variation of crucial factor, such as the temperature, impacts the growth process and the resulting...

Journal of Alloys and Compounds, 2021, 885, pp.160951. ⟨10.1016/j.jallcom.2021.160951⟩. ⟨hal-03542616⟩

• Communication dans un congrès

Bowl-shaped ZnO ultrasonic transducer for photoacoustic/ultrasonic multimode microscopy

J. Zhang, D. Zhao, D. Li, F. Tian, Wei-Jiang Xu, X. Wu

A bowl-shaped ultrasonic transducer is proposed for photoacoustic/ultrasonic multimode microscopy. The transducer uses zinc oxide (ZnO) as the piezoelectric material, which has a better electromechanical coefficient than flexible PVDF polymer and ensures the detection sensitivity. The ZnO film is...

2021 IEEE International Ultrasonics Symposium (IUS), Sep 2021, Xi'an, China. ⟨10.1109/IUS52206.2021.9593419⟩. ⟨hal-03541939⟩

• Article dans une revue

Development of broadband high-frequency piezoelectric micromachined ultrasonic transducer array

Xu-Bo Wang, Le-Ming He, You-Cao Ma, Wen-Juan Liu, Wei-Jiang Xu, Jun-Yan Ren, Antoine Riaud, Jia Zhou

Piezoelectric micromachined ultrasonic transducers (PMUT) are promising elements to fabricate a two-dimensional (2D) array with a pitch small enough (approximately half wavelength) to form and receive arbitrary acoustic beams for medical imaging. However, PMUT arrays have so far failed to combine...

Sensors, 2021, 21 (5), pp.1823. ⟨10.3390/s21051823⟩. ⟨hal-03260141⟩

• Article dans une revue

Optomechanic Coupling in Ag Polymer Nanocomposite Films

Adnane Noual, Eunsoo Kang, Tanmoy Maji, Manos Gkikas, Bahram Djafari-Rouhani, George Fytas

Particle vibrational spectroscopy has emerged as a new tool for the measurement of elasticity, glass transition, and interactions at a nanoscale. For colloid-based materials, however, the weakly localized particle resonances in a fluid or solid medium renders their detection difficult. The strong...

Journal of Physical Chemistry C, 2021, 125 (27), pp.14854-14864. ⟨10.1021/acs.jpcc.1c04549⟩. ⟨hal-03538884⟩

• Article dans une revue

Van Hove singularities and trap states in two-dimensional CdSe nanoplatelets

Nemanja Peric, Yannick Lambert, Shalini Singh, Ali Hossain Khan, Nathali Alexandra Franchina Vergel, D. Deresmes, Maxime Berthe, Zeger Hens, Iwan Moreels, Christophe Delerue, B. Grandidier, Louis Biadala

Semiconductor nanoplatelets, which offer a compelling combination of the flatness of two-dimensional semiconductors and the inherent richness brought about by colloidal nanostructure synthesis, form an ideal and general testbed to investigate fundamental physical effects related to the...

Nano Letters, 2021, 21 (4), pp.1702-1708. ⟨10.1021/acs.nanolett.0c04509⟩. ⟨hal-03152599⟩

• Communication dans un congrès

Non-linear analysis of a broadband power amplifier at 300 GHz

Haitham Ghanem, Benjamin Schoch, Ingmar Kallfass, P. Szriftgiser, Malek Zegaoui, Mohammed Zaknoune, Francois Danneville, Guillaume Ducournau

In this article we present a new method to measure the third-order intercept point (IP3) of a 300 GHz medium power amplifier MMIC based on III-V technology in an on-wafer measurement setup. The extraction was carried out using a uni-travelling carrier photodiode as the input signal source. Taking...

15th European Microwave Integrated Circuits Conference, Session EuMIC12 - Design and Characterisation Techniques,, Jan 2021, Utrecht, Netherlands. pp.209-212. ⟨hal-03348195⟩

• Communication dans un congrès

Back gate impact on the noise performances of 22FDX fully-depleted SOI CMOS

Ousmane Magatte Kane, Luca Lucci, Pascal Scheiblin, Thierry Poiroux, Jean-Charles Barbé, Francois Danneville

Ultra-Thin-Body and Back-oxide Fully-Depleted Silicon-On-Insulator (UTBB-FDSOI) MOSFETs are the most recent and advanced Silicon-On-Insulator (SOI) architecture proposed to overcome the down-scaling limitations of traditional bulk devices. The UTBB-FDSOI architecture has already been proved very...

15th European Microwave Integrated Circuits Conference, EuMIC 2020, Jan 2021, Utrecht, Netherlands. 81-84, https://ieeexplore.ieee.org/abstract/document/9337333. ⟨hal-03462849⟩