A new pulsed laser deposition technique: scanning multi-component pulsed laser deposition method

The Review of Scientific Instruments
D FischerM Jansen

Abstract

The scanning multi-component pulsed laser deposition (PLD) method realizes uniform depositions of desired coatings by a modified pulsed laser deposition process, preferably with a femto-second laser-system. Multi-component coatings (single or multilayered) are thus deposited onto substrates via laser induced ablation of segmented targets. This is achieved via horizontal line-scanning of a focused laser beam over a uniformly moving target's surface. This process allows to deposit the desired composition of the coating simultaneously, starting from the different segments of the target and adjusting the scan line as a function of target geometry. The sequence and thickness of multilayers can easily be adjusted by target architecture and motion, enabling inter/intra layer concentration gradients and thus functional gradient coatings. This new, simple PLD method enables the achievement of uniform, large-area coatings. Case studies were performed with segmented targets containing aluminum, titanium, and niobium. Under the laser irradiation conditions applied, all three metals were uniformly ablated. The elemental composition within the rough coatings obtained was fixed by the scanned area to Ti-Al-Nb = 1:1:1. Crystalline aluminum, ti...Continue Reading

References

Jul 2, 2008·Journal of Physics. Condensed Matter : an Institute of Physics Journal·H M Christen, G Eres

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Citations

Mar 18, 2017·Physical Chemistry Chemical Physics : PCCP·Y UnutulmazsoyJ Maier
Oct 3, 2019·The Review of Scientific Instruments·S MaruyamaY Matsumoto

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Methods Mentioned

BETA
irradiating
irradiates
scanning electron microscopy
x-ray powder diffraction
electron spectroscopy
AFM
quartz crystal microbalance
transmission electron microscopy

Software Mentioned

WSxM
Samlight

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