Nanoparticle coagulation in fractionally charged and charge fluctuating dusty plasmas

Journal Article · Fri Aug 15 00:00:00 EDT 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2972162· OSTI ID:21120480

Nunomura, Shota; Kondo, Michio ^[1]; Shiratani, Masaharu; Koga, Kazunori; Watanabe, Yukio ^[2]

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1. Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki 305-8568 (Japan)
2. Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395 (Japan)

The kinetics of nanoparticle coagulation has been studied in fractionally charged and charge fluctuating dusty plasmas. The coagulation occurs when the mutual collision frequency among nanoparticles exceeds their charging and decharging/neutralization frequency. Interestingly, the coagulation is suppressed while a fraction (several percent) of nanoparticles are negatively charged in a plasma, in which stochastic charging plays an important role. A model is developed to predict a phase diagram of the coagulation and its suppression.

• OSTI ID: 21120480
• Journal Information: Physics of Plasmas, Vol. 15, Issue 8; Other Information: DOI: 10.1063/1.2972162; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONS
FLUCTUATIONS
KINETICS
NANOSTRUCTURES
PARTICLES
PHASE DIAGRAMS
PLASMA
STOCHASTIC PROCESSES