Numerical study of effect of secondary electron emission on discharge characteristics in low pressure capacitive RF argon discharge

2014 ◽  
Vol 21 (8) ◽  
pp. 083511 ◽  
Author(s):  
Tagra Samir
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Numerical Study ◽  
Secondary Electron Emission ◽  
Low Pressure ◽  
Discharge Characteristics ◽  
Argon Discharge

A study on the secondary electron emission from Na-ion-doped MgO films in relation to the discharge characteristics of plasma display panels

2009 ◽  
Vol 517 (5) ◽  
pp. 1706-1709 ◽  
Author(s):  
Sung Il Ahn ◽  
Seong Eui Lee ◽  
Si Hong Ryu ◽  
Kyung Cheol Choi ◽  
Sang Jik Kwon ◽  
...  
Keyword(s):  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Discharge Characteristics ◽  
Plasma Display Panels ◽  
Plasma Display

Surface effects in a capacitive argon discharge in the intermediate pressure regime

2021 ◽  
Author(s):  
Jon Tomas Gudmundsson ◽  
Janez Krek ◽  
De-Qi Wen ◽  
Emi Kawamura ◽  
Michael A Lieberman
Keyword(s):  
Excited States ◽  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Plasma Sheath ◽  
Secondary Electrons ◽  
Particle In Cell ◽  
Argon Discharge ◽  
Discharge Operation ◽  
Ion Impact

Abstract One-dimensional particle-in-cell/Monte Carlo collisional (PIC/MCC) simulations are performed on a capacitive 2.54 cm gap, 1.6 Torr argon discharge driven by a sinusoidal rf current density amplitude of 50 A/m2 at 13.56 MHz. The excited argon states (metastable levels, resonance levels, and the 4p manifold) are modeled self-consistently with the particle dynamics as space- and time-varying fluids. Four cases are examined, including and neglecting excited states, and using either a fixed or energy-dependent secondary electron emission yield due to ion and/or neutral impact on the electrodes. The results for all cases show that most of the ionization occurs near the plasma-sheath interfaces, with little ionization within the plasma bulk region. Without excited states, secondary electrons emitted from the electrodes are found to play a strong role in the ionization process. When the excited states, secondary electron emission due to neutral and ion impact on the electrodes are included in the discharge model, the discharge operation transitions from α-mode to γ-mode, in which nearly all the ionization is due to secondary electrons. Excited states are very effective in producing secondary electrons, with approximately 14.7 times the contribution of ion bombardment. Electron impact of ground state argon atoms by secondary electrons contributes about 76 % of the total ionization; primary electrons, about 11 %; metastable Penning ionization, about 13 %; and multi-step ionization, about 0.3 %.

Modelling of low-pressure gas breakdown in uniform DC electric field by PIC technique with realistic secondary electron emission

2006 ◽  
Vol 56 (S2) ◽  
pp. B996-B1001 ◽  
Author(s):  
M. Radmilović-Radjenović ◽  
Z. Lj. Petrović ◽  
G. N. Malović ◽  
D. Marić ◽  
B. Radjenović
Keyword(s):  
Electric Field ◽  
Electron Emission ◽  
Secondary Electron ◽  
Secondary Electron Emission ◽  
Low Pressure ◽  
Dc Electric Field ◽  
Gas Breakdown
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