125 citations · 612 across the 20 of their papers we have counts for
22 papers
Distinguishing sodium-ion penetration and sustained transport in realistic hard carbon nanostructures
Carolina Cruz-Cardona, Andreea Hedes, Patrick Rowe +7
Hard carbons are promising anodes for sodium-ion energy storage, yet the relationship between their heterogeneous microstructure and sodium transport remains poorly understood. Her…
Advanced Spectroscopic Analyses on a:C-H Materials: Revisiting the EELS Characterization and its Coupling with multi-wavelength Raman Spectroscopy
L. Lajaunie, C. Pardanaud, C. Martin +4
Hydrogenated amorphous carbon thin films (a:C-H) are very promising materials for numerous applications. The growing of relevance of a:C-H is mainly due to the long-term stability…
Onion-like Fe3O4/MgO/CoFe2O4 magnetic nanoparticles: new ways to control magnetic coupling between soft/hard phases
Jorge M. Nuñez, Simon Hettler, Enio Lima +5
The control of the magnetization inversion dynamics is one of the main challenges driving the design of new nanostructured magnetic materials for magnetoelectronic applications. Na…
Molybdenum diselenide-manganese porphyrin bifunctional electrocatalyst for hydrogen evolution reaction and selective hydrogen peroxide production
Antonia Kagkoura, Christina Stangel, Raul Arenal +1
Electrochemical reactions for hydrogen and hydrogen peroxide production are essential for energy conversion to diminish energy crisis, but still lack efficient electrocatalysts. De…
Crystalline Phase Effects on the Nonlinear Optical Response of MoS2 and WS2 Nanosheets
Michalis Stavrou, Nikolaos Chazapis, Eleni Nikoli +3
In the present work, some MoS2 and WS2 nanosheets were prepared and characterized. Depending on the preparation procedures, trigonal prismatic (2H) or octahedral (1T) coordination…
Asymmetrical plasmon distribution in hybrid AuAg hollow/solid coded nanotubes
Aziz Genç, Javier Patarroyo, Jordi Sancho-Parramon +4
Morphological control at the nanoscale paves the way to fabricate nanostructures with desired plasmonic properties. We report the nanoengineering of plasmon resonances in 1D hollow…
Photo-Rechargeable Li Ion Batteries using TiS2 Cathode
Amar Kumar, Raheel Hammad, Mansi Pahuja +4
Photo-rechargeable (solar) battery can be considered as an energy harvesting cum storage system, where it can charge the conventional metal-ion battery using light instead of elect…
Catalysts for the hydrogen evolution reaction in alkaline medium: Configuring a cooperative mechanism at the Ag-AgS-MoS interface
Avraham Bar-Hen, Simon Hettler, Ashwin Ramasubramaniam +3
Designing electrocatalysts for HER in alkaline conditions to overcome the sluggish kinetics associated with the additional water dissociation step is a recognized challenge in prom…
On the Existence of Photoluminescence and Room-Temperature Spin Polarization in Ambipolar V doped MoS Monolayers
Dipak Maity, Rahul Sharma, Krishna Rani Sahoo +3
Opto-spintronics is an emerging field where ultra-thin magnetic-semiconductors having high spin-valley coupling play an important role. Here, we demonstrate substitutional vanadium…
Aberration-corrected transmission electron microscopy with Zernike phase plates
Simon Hettler, Raul Arenal
We explore the possibility of applying physical phase plates (PPs) in combination with aberration-corrected transmission electron microscopy. Phase-contrast transfer characteristic…
A Detailed Investigation of the Onion Structure of Exchanged Coupled Magnetic Fe(3-delta)O4@CoFe2O4@Fe(3-delta)O4 Nanoparticles
Kevin Sartori, Anamaria Musat, Fadi Choueikani +7
Nanoparticles (NPs) which combine several magnetic phases offer wide perspectives for cutting edge applications because of the high modularity of their magnetic properties. Besides…
Controlled chemical functionalization toward 3D-2D carbon nanohorn-MoS2 heterostructures with enhanced electrocatalytic activity for protons reduction
Antonia Kagkoura, Raul Arenal, Nikos Tagmatarchis
The realization of novel heterostructures arising from the combination of nanomaterials is an effective way to modify their physicochemical and electrocatalytic properties, giving…
Shelling with MoS Functional CuS@MoS2 Hybrids as Electrocatalysts for the Oxygen Reduction and Hydrogen Evolution Reactions
Avraham Bar-Hen, Ronen Bar Ziv, Tsion Ohaion-Raz +4
The development of noble-metal free electrocatalysts is of high importance for clean energy conversion applications. MoS has been considered as a promising low cost catalyst fo…
Comparative image simulations for phase-plate transmission electron microscopy
Simon Hettler, Raul Arenal
Numerous physical phase plates (PP) for phase-contrast enhancement in transmission electron microscopy (TEM) have been proposed and studied with the hole-free or Volta PP having a…
In-situ reduction by Joule heating and measurement of electrical conductivity of graphene oxide in a transmission electron microscope
Simon Hettler, David Sebastian, Mario Pelaez-Fernandez +3
Graphene oxide (GO) is reduced by Joule heating using in-situ transmission electron microscopy (TEM). The approach allows the simultaneous study of GO conductivity by electrical me…
Detailed thermal reduction analyses of Graphene Oxide via in-situ TEM/EELS studies
M. Pelaez-Fernandez, A. Bermejo, A. M. Benito +2
We report an in-depth study of the reduction of graphene oxide (GO) by in-situ thermal transmission electron microscopy (TEM) analysis. In-situ heating high-resolution TEM (HRTEM)…
Platinum tripods as nanometric frequency multiplexing devices
B. C. Camargo, B. Lassagne, R. Arenal +5
Electrical and structural characterization of nano-particles are very important steps to determine their potential applications in microelectronics. In this paper, we adress the cr…
Weakly Trapped, Charged, and Free Excitons in Single-Layer MoS2 in the Presence of Defects, Strain, and Charged Impurities
Sudipta Dubey, Simone Lisi, Goutham Nayak +17
Few- and single-layer MoS2 host substantial densities of defects. They are thought to influence the doping level, the crystal structure, and the binding of electron-hole pairs. We…
Oxidation-assisted graphene heteroepitaxy on copper foil
Nicolas Reckinger, Xiaohui Tang, Frédéric Joucken +6
We propose an innovative, easy-to-implement approach to synthesize large-area singlecrystalline graphene sheets by chemical vapor deposition on copper foil. This method doubly take…
From hollow gold nanoparticles to gold nanorings: Morphological tunability of the plasmonic response
Martin Prieto, Raul Arenal, Luc Henrard +3
The optical and morphological properties of hollow gold nanoparticles (HGNPs) can be finely modified by employing Poly-L-Lysine hydrobromide (PLL), an homo poly aminoacid of the L-…
Atomic Configuration of Nitrogen Doped Single-Walled Carbon Nanotubes
Raul Arenal, Katia March, Chris P. Ewels +4
Having access to the chemical environment at the atomic level of a dopant in a nanostructure is crucial for the understanding of its properties. We have performed atomically-resolv…
Coupled study by TEM/EELS and STM/STS of electronic properties of C- and CNx-nanotubes
Hong Lin, Jérôme Lagoute, Vincent Repain +7
Carbon nanotubes are the focus of considerable research efforts due to their fascinating physical properties. They provide an excellent model system for the study of one dimensiona…