Gas-temperature-dependent characteristics of cryo-dielectric barrier discharge plasma under atmospheric pressure

Yuri Noma, Jai Hyuk Choi, Sven Stauss, Takaaki Tomai, Kazuo Terashima

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


In the present work, cryo-dielectric barrier discharge (DBD) plasma was generated continuously below room temperature down to liquid nitrogen temperature (296 to 78 K) under atmospheric pressure using parallel indium-tin-oxide (ITO)-coated electrodes. Gas-temperaturedependent optical emission spectroscopy (OES) measurements and discharge pattern observation of cryo-DBD plasma were performed. In the case of helium gas, the discharge mode of cryo-DBD plasma changed from filamentary mode to glow mode as the gas temperature decreased. When introducing a small amount of nitrogen in helium gas, the filamentary discharge mode persisted upon decreasing the gas temperature, although the discharge pattern changed from concentric rings (296K) to a hexagon-like pattern (78K).

Original languageEnglish
Pages (from-to)460011-460013
Number of pages3
JournalApplied Physics Express
Issue number4
Publication statusPublished - 2008 Apr 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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