Physics:Nano-PSI
Nano-PSI is a plasma device at the Differ – Dutch Institute For Fundamental Energy Research ("DIFFER". http://www.differ.nl/.) research institute in Eindhoven. It is used for experimental research at the junction of plasma physics and materials science. 'PSI' stands for Plasma Surface Interactions, while 'nano' has been chosen to stress the mission of the device to synthesize various nanostructures. Nano-PSI is the belongs to the family of plasma generators at DIFFER, that also hosts the Magnum-PSI and UPP-PSI linear devices.
The plasma is created by a Cascaded Arc Plasma Source,[1] which exhausts into the spherical vacuum vessel. Gases such as Helium, Hydrogen, Nitrogen, Argon, Xenon can be used to create plasma. Samples are mounted in direct view of the plasma. The plasma species interact with the atoms of the sample, leading to surface modifications. In general this process is called plasma processing.
A Langmuir probe can be used to determine the plasma parameters, such as density and temperature. The substrate holder can be electrically biased to attract desired quantities of ions or electrons. Besides, it is possible to use a heated target holder or a cooled targetholder to mount the sample to a given temperature during operation. Large transient heat fluxes can be created when the plasma source is coupled to a capacitor bank.
See also
- Chemical vapor deposition
- Pulsed laser deposition
- Gas discharge plasmas and their applications.[2]
- Semiconductor manufacturing; Plasma-enhanced chemical vapor deposition
- National Spherical Torus Experiment in nuclear fusion
References
- ↑ Kroesen, G.M.W.; Schram, D.C.; de Haas, J.C.M. (1990). "Description of cascade arc plasma". Plasma Chemistry and Plasma Processing 10 (4): 531–551. http://alexandria.tue.nl/repository/freearticles/588632.pdf.
- ↑ Bogaerts, A.; Neyts, E.; Gijbels, R.; van der Mullen, J. (2002). "Gas discharge plasmas and their applications". Spectrochimica Acta. Part B 57: 609–658. http://webhost.ua.ac.be/plasma/pdf_papers/sab02gas.pdf.
Further reading
- de Temmermana, Gregory; Bystrov, Kirill; Zielinski, Jakub J. (27 June 2012). "Nanostructuring of molybdenum and tungsten surfaces by low-energy helium ions". Journal of Vacuum Science & Technology A 30 (4): 041306. doi:10.1116/1.4731196.
- Wright (2012). "Tungsten fuzz growth". Massachusetts Institute of Technology. http://www.psfc.mit.edu/research/alcator/pubs/PSI/psi20/Wright_PSI_2012_talk.pdf.
- Jaramillo (2010). "Nanostructured MoS2 and WS2 for the solar production of hydrogen". Stanford U.. http://gcep.stanford.edu/pdfs/etIjqh4kp05OZqEOBjS-vw/5.5_Jaramillo_Web_Public_2010.pdf.
- Labelle, Andre (June 2011). The effects of helium on deuterium retention in tungsten under simultaneous irradiation (PDF) (MASc thesis). Canada: U. Toronto.
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