52 citations · 247 across the 11 of their papers we have counts for
11 papers
Relaxation and derelaxation of pure and hydrogenated amorphous silicon during thermal annealing experiments
F. Kail, J. Farjas, P. Roura +5
The structural relaxation of pure amorphous silicon (a-Si) and hydrogenated amorphous silicon (a-Si:H) materials, that occurs during thermal annealing experiments, has been analyse…
Structural Relaxation Kinetics for First and Second-Order Processes: Application to Pure Amorphous Silicon
Pere Roura, Jordi Farjas
The structural relaxation of amorphous materials is described as arising from the superposition of elementary processes with varying activation energies. We show that it is possibl…
Si3N4 single-crystal nanowires grown from silicon micro and nanoparticles near the threshold of passive oxidation
J. Farjas, C. Rath, A. Pinyol +2
A simple and most promising oxide-assisted catalyst-free method is used to prepare silicon nitride nanowires that give rise to high yield in a short time. After a brief analysis of…
Kinetic study of the oxide-assisted catalyst-free synthesis of silicon nitride nanowires
J. Farjas, A. Pinyol, Chandana Rath +2
The synthesis of Si3N4 nanowires from the reaction of silicon nanoparticles with N2 in the 1200-1440 C temperature range is reported. The nitridation conditions are such that the r…
Numerical model of solid phase transformations governed by nucleation and growth. Microstructure development during isothermal crystallization
J. Farjas, P. Roura
A simple numerical model which calculates the kinetics of crystallization involving randomly distributed nucleation and isotropic growth is presented. The model can be applied to d…
Solid phase crystallization under continuous heating: kinetic and microstructure scaling laws
J. Farjas, P. Roura
The kinetics and microstructure of solid-phase crystallization under continuous heating conditions and random distribution of nuclei are analyzed. An Arrhenius temperature dependen…