The changes in particle charge distribution during rapid growth of particles in the plasma reactor

Kyo Seon Kim, Dong Joo Kim, Jong Hwan Yoon, Jin Yong Park, Yukio Watanabe, Masaharu Shiratani

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


The changes in particle charging were investigated during the rapid growth of particles in the plasma reactor by the discrete-sectional model and the Gaussian charge distribution function. The particle size distribution becomes bimodal in the plasma reactor and most of the large particles are charged negatively, but some fractions of small particles are in a neutral state or even charged positively. As the particles accumulate in the plasma reactor, the amount of electrons absorbed onto the particles increases, while the electron concentration in the plasma decreases. As the mass generation rate of small particles (monomers) decreases or as the initial electron concentration increases, the electron concentration in the plasmas increases and the particle charge distribution is shifted in the negative direction and the fraction of particles charged negatively and the average number of electrons per particle increase. With the decrease in monomer diameter, the electron concentration decreases in the beginning of plasma discharge, but, later, increases. For high mass generation rate of monomers or for low initial electron concentration or for small monomer diameter, the fraction of particles in a neutral state increases and the particle size distribution becomes broader.

Original languageEnglish
Pages (from-to)195-207
Number of pages13
JournalJournal of Colloid And Interface Science
Issue number2
Publication statusPublished - Jan 15 2003

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry


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