منابع مشابه
Pulsed Laser Deposition and Epitaxy
Laser is a powerful tool in many applications. It is especially useful in material processing. Thanks to it's narrow frequency bandwidth, coherence and high power density this instrument is used in many scientific research works and experiments. Often the light beam is intense enough to vaporize the hardest and most heat resistant materials. Besides, due to its high precision, reliability and s...
متن کاملPulsed laser deposition vs. matrix assisted pulsed laser evaporation for growth of biodegradable polymer thin films
Thin films of poly (lactide-co-glycolide) (PLGA), a biodegradable polymer, were deposited on Si wafers by both conventional pulsed laser deposition (PLD) and matrix assisted pulsed laser evaporation (MAPLE) using chloroform (CHCl3) as a matrix solvent. This research represents an initial study to investigate the deposition characteristics of each technique at comparable conditions to gain insig...
متن کاملBack Flux for Pulsed Laser Evaporation into Vacuum
This paper proposes results on calculation of the back flux for the case of pulsed laser evaporation into vacuum. On the basis of the direct Monte Carlo simulation, one-dimensional plane expansion of vapor cloud was calculated for a wide range of the number of evaporated monolayers. A substantial back flux rise is observed if the rotational degrees of freedom are taken into account. Influence o...
متن کاملMonte Carlo simulations of epitaxial growth: comparison of pulsed laser deposition and molecular beam epitaxy
The influence of epitaxial growth method on surface morphology was explored using a solid-on-solid, rate equation, Ž . Ž . Monte Carlo simulation whose parameters were chosen to approximate 1=1 Si 001 . In simulations corresponding to molecular beam epitaxy, films of 10 monolayer thickness were deposited with a steady-state flux of 0.25 monolayersrs and an adatom energy of 0.3 eV. In simulation...
متن کاملDeposition of Nanotubes and Nanotube Composites using Matrix-Assisted Pulsed Laser Evaporation
Using the Matrix-Assisted Pulsed Laser Evaporation (MAPLE) process developed at the Naval Research Laboratory, carbon nanotubes and carbon nanotube composite thin films have been successfully fabricated. This process involves dissolving or suspending the film material in a volatile solvent, freezing the mixture to create a solid target, and using a low fluence pulsed laser to evaporate the targ...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 1991
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.80.221