AVS 51st International Symposium
    Plasma Science and Technology Thursday Sessions
       Session PS-ThM

Invited Paper PS-ThM1
Atmospheric and Micro Discharges

Thursday, November 18, 2004, 8:20 am, Room 213A

Session: Atmospheric and Microdischarges
Presenter: J.K. Lee, Pohang University of Science and Technology, South Korea
Authors: J.K. Lee, Pohang University of Science and Technology, South Korea
S.S. Yang, Pohang University of Science and Technology, South Korea
M. Radmilovic-Radjenovic, Pohang University of Science and Technology, South Korea
S. Mukherjee, Pohang University of Science and Technology, South Korea
Correspondent: Click to Email
Plasma display panels (PDPs) are micro discharges, operated at high pressures of 400-500 Torr. Using 2-D kinetic simulation code (XOOPIC), we calculated incident angle and energy distributions of ions on the cathode surface in a PDP cell. Kinetic results show that in a coplanar-type PDP cell, most ions impinge on the MgO surface at the cathode region with the incident angle in the range of 10~30 degrees@footnote 1@ from normal with energies below 50 eV and two temperatures 5 and 50 eV. The calculated electron temperature at the anode striation@footnote 2@ region is lower than that between the striation bunches and ranges from 0.5 to 2 eV. We operated the panel at pressures in atmospheric range to study the distinction in the characteristics of the discharge. At a constant pd value by increasing pressure p (in the atmospheric pressure range) and reducing gap length d, we observed similar discharge characteristics to the conventional PDP. We also investigated the difference in the discharge characteristics in the presence and absence of radiation trapping@footnote 3@ and dimers by our 2-D and 3-D fluid simulations and the Paschen breakdown characteristics of microdischarges at high pressures. @FootnoteText@ @footnote 1@ S.S. Yang, J.K. Lee, et al., Contri. to Plasma Phys. (to appear in 2004).@footnote 2@ C.H. Shon and J.K. Lee, Phys. Plasmas 8, 1070 (2001).@footnote 3@ H.C. Kim, S.S. Yang, and J.K. Lee, J. Appl. Phys. 93(12), 9516 (2003).