2009
DOI: 10.1002/ctpp.200910028
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Towards a Microscopic Theory of Particle Charging

Abstract: We recently questioned the treatment of a dust particle as a perfect absorber for electrons and ions and proposed a surface model for the charge of a dust particle in a quiescent plasma which combines the microscopic physics at the grain boundary (sticking into and desorption from external surface states) with the macrophysics of the discharge (plasma collection fluxes). Within this model the charge and partial screening of the particle can be calculated without relying on the condition that the total electron… Show more

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Cited by 21 publications
(10 citation statements)
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“…Thus, the development of temperature diagnostics for micro-particles is not only beneficial for the improvement of plasma technology, but could also enhance the understanding of plasma-particle interactions [8,9]. Daugherty and Graves measured particle temperatures in a pulsed rf discharge in argon [10] by observation of the decay time of fluorescent particles during the plasma-off phase.…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the development of temperature diagnostics for micro-particles is not only beneficial for the improvement of plasma technology, but could also enhance the understanding of plasma-particle interactions [8,9]. Daugherty and Graves measured particle temperatures in a pulsed rf discharge in argon [10] by observation of the decay time of fluorescent particles during the plasma-off phase.…”
Section: Introductionmentioning
confidence: 99%
“…The charging of nanoparticles in plasmas is still actively researched (cf. for example [44][45][46][47]) and no complete general theory has been developed, even if one restricts the theory to the charging of nanoparticles in low-temperature plasmas. The theory for charging of nanoparticle in low-temperature plasmas with the highest acceptance is the so-called orbit motion limit (OML) theory.…”
Section: Charging Of Nanoparticles In Plasmasmentioning
confidence: 99%
“…Several studies addressed the grain temperature, both theoretically [39][40][41][42] and experimentally [33,34,[43][44][45][46][47]. For example, Daugherty and Graves measured the temperature-dependent decay time of the fluorescence of manganese activated magnesium fluorogermanate particles in a pulsed argon discharge during the plasma-off phase [43].…”
Section: Particles In a Plasma Environment And The Measurement Of Thementioning
confidence: 99%