Observation of the hollow cathode effect from a dielectric cathode

Hyeon Seok Hwang, Jin Young Oh, Youn Sang Kim, Se Jong Lee, Kie Moon Song, Hong Koo Baik

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The hollow cathode effect (HCE) is investigated in the dielectric hollow cathode structure in a Ne-Xe mixture at 4%. The influence of the dielectric is shown experimentally by the relationship between voltage and current peaks. The linearity of reduced current density confirms the existence of the HCE and shows that cathode fall has the same value at every pD condition. Varying the pD, the variation in the discharge mode can be measured with IR intensity emitted from the plasma and photographs of discharge in the visible part of the spectra. Voltages and current in the range of 3 kV at 10 μA were used. We suggest an electrode configuration reinforced in cathode sputtering for the display panel and light source using the dielectric hollow cathode discharge (DHCD), and introducing a mechanism of the DHCD mode.

Original languageEnglish
Article number495205
JournalJournal of Physics D: Applied Physics
Issue number49
Publication statusPublished - 2010 Dec 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films


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