Publication
Three-dimensional in situ imaging of single-grain growth in polycrystalline In2O3:Zr films
Publications associées (50)
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Metal-halide perovskite semiconductors have attracted intense interest over the past decade, particularly for applications in photovoltaics. Low-energy optical phonons combined with significant crystal anharmonicity play an important role in charge-carrier ...
IOP PUBLISHING LTD2021Mechanistic Study on Thermally Induced Lattice Stiffening of ZIF-8
Wendy Lee Queen, Kumar Varoon Agrawal, Pascal Alexander Schouwink, Jian Hao, Mehrdad Asgari, Deepu Joseph Babu, Qi Liu
The flexibility of the ZIF-8 aperture, which inhibits a molecular cutoff of 3.4 angstrom, can be reduced by rapid heat treatment to obtain CO2-selective membranes. However, the early stages of the structural, morphological, and chemical changes responsible ...
2021Impact of negative bias on the piezoelectric properties through the incidence of abnormal oriented grains in Al0.62Sc0.38N thin films
Paul Muralt, Robin Nigon, Silviu Cosmin Sandu, Mohammad Fazel Parsapour Kolour, Lukas Riemer
Sputter deposited A1ScN films with an Sc content of 38 at % were investigated by X-ray diffraction and electron microscopy to study the influence of the radio frequency (RF) bias on the growth of abnormally oriented grains (AOG). Scanning electron microsco ...
2020Progress in modelling solidification microstructures in metals and alloys. Part II: dendrites from 2001 to 2018
This is the first account of the history of modelling dendritic and cellular solidification. While Part I reviewed the progress up to the year 2000 [Kurz W, Fisher DJ, Trivedi R. Progress in modelling solidification microstructures in metals and alloys: de ...
TAYLOR & FRANCIS LTD2020Abnormal Grain Growth in AlScN Thin Films Induced by Complexion Formation at Crystallite Interfaces
Paul Muralt, Ramin Matloub Aghdam, Silviu Cosmin Sandu, Stefan Mertin, 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-V C H VERLAG GMBH2019Radiation enhanced oxidation of proton-irradiated copper thin-films: Towards a new concept of ultra-high radiation dosimetry
Jean-Michel Sallese, Didier Bouvet, Georgi Gorine, Federico Ravotti
The effects of extreme radiation levels on the electrical resistivity of metal thin films made of copper were studied by means of electrical measurements and post irradiation imaging. Different 3x3 mm(2) chips were produced by depositing 500 nm of meander ...
AMER INST PHYSICS2019The Contribution of Mechanical Spectroscopy to Understanding Grain Boundary Sliding
This review paper shows that grain boundary sliding (GBS) is a general phenomenon occurring in all classes of inorganic materials: ceramics, metals and composite materials. The occurrence of relaxations attributed to GBS is also quite general and therefore ...
UNIV FED SAO CARLOS, DEPT ENGENHARIA MATERIALS2018Post-Sputtering Heat Treatments of Molybdenum on Silicon Wafer
This paper investigated the property evolutions of Mo thin films that were subjected to post-sputtering heat treatments from 700 degrees C to 1100 degrees C. It was found that, after annealing, the use of Si wafers eliminated crack formations found in prev ...
2018Investigation of polycrystalline ZnO film growth by quantitative TEM orientation mapping
Polycrystalline chemical vapour deposited ZnO films are commonly used as transparent electrodes for photovoltaic devices. Over the past years much effort has been put into improving their properties. Even though these films are now well optimised for speci ...
EPFL2017High performance amorphous Zn-Sn-O: impact of composition, microstructure, and thermal treatments in the optoelectronic properties
Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Monica Morales Masis, Oscar Esteban Rucavado Leandro, Federica Landucci
Zinc and tin oxides are both earth-abundant materials with demonstrated applicability as electrodes in several optoelectronic devices. The presence of grain boundaries in these polycrystalline films generally limits the electron mobility. By a combinatoria ...
Spie-Int Soc Optical Engineering2017