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Thomas La Grange

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Publications associées (38)

Performance improvement of chip-level CMOS-integrated ReRAM cells through material optimization

Yusuf Leblebici, Thomas La Grange, Elmira Shahrabi, Tugba Demirci

The integration of the resistive random access memory (ReRAM) with CMOS logic circuitry provides a solution to scaling limitations, and offers promising candidates for use in next generation computing applications. It is challenging to realize a reliable, ...

ELSEVIER SCIENCE BV2019

Nanosecond electron pulses in the analytical electron microscopy of a fast irreversible chemical reaction

Thomas La Grange

We show how the kinetics of a fast and irreversible chemical reaction in a nanocrystalline material at high temperature can be studied using nanosecond electron pulses in an electron microscope. Infrared laser pulses first heat a nanocrystalline oxide laye ...

Springer2019

Abnormal Grain Growth in AlScN Thin Films Induced by Complexion Formation at Crystallite Interfaces

Paul Muralt, Thomas La Grange, Silviu Cosmin Sandu, Stefan Mertin, Ramin Matloub Aghdam, Mohammad Fazel Parsapour Kolour, Vladimir Pashchenko

Sputter deposited Al(1-x)ScxN thin films with a Sc content from x = 0 to 43 at% are investigated by electron microscopy in order to study and explain the formation and growth of abnormally oriented grains (AOG). It is found that the latter did not nucleate ...

Wiley-VCH Verlag2019

Multiple morphologies and functionality of nanowires made from earth-abundant zinc phosphide

Thomas La Grange, Anna Fontcuberta i Morral, Elias Zsolt Stutz, Jean-Baptiste Leran, Nicolas Tappy, Reza Zamani, Mahdi Zamani, Simon Robert Escobar Steinvall, Rajrupa Paul

The raw data used in the publication of MBE grown Zinc Phosphide nanowires. ...

2019

Pronounced grain boundary network evolution in nanocrystalline Cu subjected to large cyclic strains

Thomas La Grange

The grain boundary network of nanocrystalline Cu foils was modified by the application of cyclic loadings and elevated temperatures. Broadly, the changes to the boundary network were directly correlated with the applied temperature and accumulated strain, ...

2019

Material Parameter Extraction for Complex AlScN Thin Film Using Dual Mode Resonators in Combination with Advanced Microstructural Analysis and Finite Element Modeling

Paul Muralt, Thomas La Grange, Silviu Cosmin Sandu, Mohammad Fazel Parsapour Kolour, Vladimir Pashchenko, Kaoru Yamashita

Accurate property determination of the piezoelectric thin film material Al(1-x)Sc(x)N is necessary for designing the next generation of radio frequency resonators in mobile communication, and for testing results of ab initio calculations. Sound velocity an ...

WILEY2019

Switching Kinetics Control of W-Based ReRAM Cells in Transient Operation by Interface Engineering

Yusuf Leblebici, Thomas La Grange, Mahmoud Hadad, Miguel Ramos, Carlo Ricciardi, Cecilia Giovinazzo

Tungsten (W) is one of the most promising materials to be used in resistive random-access memory electrodes due to its low work function and compatibility with semiconductors, which raises the possibility of device integration, scalability, and low power c ...

WILEY2019

Wafer-scale MOCVD growth of monolayer MoS2 on sapphire and SiO2

Andras Kis, Thomas La Grange, Aleksandra Radenovic, Ke Liu, Yanfei Zhao, Hokwon Kim, Huanyao Cun, Michal Daniel Macha

High-quality and large-scale growth of monolayer molybdenum disulfide (MoS2) has caught intensive attention because of its potential in many applications due to unique electronic properties. Here, we report the wafer-scale growth of high-quality monolayer ...

2019

Efficient Solar-vapor Generation in Hollow-mesoporous Plasmonic Nanoshells

Jeffrey Alan Hubbell, Thomas La Grange, Demetri Psaltis, Jae-Woo Choi, Seyyed Mohammad Hosseini Hashemi, Ye Pu, Marcin Stefan Zielinski, Miguel Antonio Modestino

Plasmonic nanostructures have shown great promise in solar thermal applications. Here we report highly efficient solar vapor generation using hollow-mesoporous plasmonic nanoshells, where the steam production is significantly enhanced by the extended activ ...

IEEE2018

Au Core-Pd Shell Bimetallic Nanoparticles Immobilized within Hyper-Cross-Linked Polystyrene for Mechanistic Study of Suzuki Cross-Coupling: Homogeneous or Heterogeneous Catalysis?

Lioubov Kiwi, Thomas La Grange

The synthesis of catalytically active bimetallic Au-Pd nanoparticles stabilized in hyper-cross-linked polystyrene (HPS) for Suzuki cross-coupling of 4-bromoanisole (4-BrAn) and phenylboronic acid is presented. The core-shell structure with a thin (less tha ...

AMER CHEMICAL SOC2018

Low-Dose Prostate Cancer Brachytherapy with Radioactive Palladium-Gold Nanoparticles

Thomas La Grange, Marc-André Fortin

Prostate cancer (PCa) is one of the leading causes of death among men. Low-dose brachytherapy is an increasingly used treatment for PCa, which requires the implantation of tens of radioactive seeds. This treatment causes discomfort; these implants cannot b ...

Wiley2017

Hollow Mesoporous Plasmonic Nanoshells for Enhanced Solar Vapor Generation

Jeffrey Alan Hubbell, Thomas La Grange, Demetri Psaltis, Jae-Woo Choi, Ye Pu, Seyyed Mohammad Hosseini Hashemi, Ye Pu, Marcin Stefan Zielinski, Miguel Antonio Modestino

In the past decade, nanomaterials have made their way into a variety of technologies in solar energy, enhancing the performance by taking advantage of the phenomena inherent to the nanoscale. Recent examples exploit plasmonic core/shell nanoparticles to ac ...

American Chemical Society2016

Determination of crystal growth rates during rapid solidification of polycrystalline aluminum by nano-scale spatio-temporal resolution in situ transmission electron microscopy

Thomas La Grange

In situ investigations of rapid solidification in polycrystalline Al thin films were conducted using nano-scale spatio-temporal resolution dynamic transmission electron microscopy. Differences in crystal growth rates and asymmetries in melt pool developmen ...

Amer Inst Physics2016

Electron beam dynamics in an ultrafast transmission electron microscope with Wehnelt electrode

Thomas La Grange

High temporal resolution transmission electron microscopy techniques have shown significant progress in recent years. Using photoelectron pulses induced by ultrashort laser pulses on the cathode, these methods can probe ultrafast materials processes and ha ...

Elsevier Science Bv2016

Ni-based structured catalyst for selective 3-phase hydrogenation of nitroaromatics

Lioubov Kiwi, Thomas La Grange, Paul Joseph Dyson, Oliver Anthony Beswick, Félicien Muriset, Daniel André Samuel Lamey

We report herein on the development of Ni-based catalyst using activated carbon fibres (ACFs) as a structured support and its application for the three‐phase hydrogenation of nitroarenes (T = 353 K; P = 10 bar). It was shown that metallic Ni0 nanoparticles ...

Elsevier2016

Current status and future directions for in situ transmission electron microscopy

Thomas La Grange

This review article discusses the current and future possibilities for the application of in situ transmission electron microscopy to reveal synthesis pathways and functional mechanisms in complex and nanoscale materials. The findings of a group of scienti ...

Elsevier Science Bv2016

Irradiation-induced phase transformation in undeformed and deformed NiTi shape memory thin films by high-energy ion beams

Robin Schäublin, Thomas La Grange

Irradiation-induced transformations in sputter-deposited Ti-rich NiTi thin films have been investigated with special attention given to the effects of prior deformation on the response of martensite phase. Irradiation at low fluence was carried out at room ...

2005

Ion implantation in Ni-Ti shape memory alloy thin films

Thomas La Grange

The present thesis focuses on the effect of 5 MeV Ni ion irradiation on the microstructure and the thermomechanical behavior in prestrained (ε∼4%) martensitic Ti-rich NiTi thin films. At this ion energy, damage is limited to a depth of approximately 2 µm ( ...

EPFL2005

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