Nanoparticle coagulation in fractionally charged and charge fluctuating dusty plasmas

被引：16
|
作者：
Nunomura, Shota [1 ]
Shiratani, Masaharu [2 ]
Koga, Kazunori [2 ]
Kondo, Michio [1 ]
Watanabe, Yukio [2 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba, Ibaraki 3058568, Japan
[2] Kyushu Univ, Grad Sch Informat Sci & Elect Engn, Dept Elect, Fukuoka 8190395, Japan
来源：
PHYSICS OF PLASMAS | 2008年 / 15卷 / 08期
关键词：
D O I：
10.1063/1.2972162
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
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. (C) 2008 American Institute of Physics.
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页数：4
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