A particle-in-cell simulation of the breakdown mechanism in microdischarges with an improved secondary emission model
Апстракт
In this paper, the failure of the breakdown voltage from the Paschens law at extremely small electrode separations is studied. The electrical breakdown in microgaps occurs at the voltages far below the Paschen curve minimum breakdown limit and the modified Paschen curve should be used. Offered explanation for the departure from the Paschens law at small gap spacings is based on the increasing of the yield of the secondary electrons. The high electric fields existing in small gaps may enhance the secondary electron yield and this would lead to a lowering of the breakdown voltage and to the departure from the Paschens law. Particle-in-cell/Monte-Carlo (PIC/MCC) simulations with a new secondary emission model have been performed to estimate the importance of this mechanism in the discharge breakdown. Obtained simulation results suggest that deviations from the Paschen curve across the micron and submicorn gap spacing can be attributed to the ion-enhanced field emissions. (c) 2007 WILEY-VC...H Verlag GmbH and Co. KGaA, Weinheim.
Кључне речи:
microgaps / field emission / breakdown voltage / modified Paschen curveИзвор:
Contributions to Plasma Physics, 2007, 47, 3, 165-172
DOI: 10.1002/ctpp.200710023
ISSN: 0863-1042
WoS: 000246572000005
Scopus: 2-s2.0-34248583606
Колекције
Институција/група
VinčaTY - JOUR AU - Radmilović-Rađenović, Marija AU - Rađenović, Branislav M. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3197 AB - In this paper, the failure of the breakdown voltage from the Paschens law at extremely small electrode separations is studied. The electrical breakdown in microgaps occurs at the voltages far below the Paschen curve minimum breakdown limit and the modified Paschen curve should be used. Offered explanation for the departure from the Paschens law at small gap spacings is based on the increasing of the yield of the secondary electrons. The high electric fields existing in small gaps may enhance the secondary electron yield and this would lead to a lowering of the breakdown voltage and to the departure from the Paschens law. Particle-in-cell/Monte-Carlo (PIC/MCC) simulations with a new secondary emission model have been performed to estimate the importance of this mechanism in the discharge breakdown. Obtained simulation results suggest that deviations from the Paschen curve across the micron and submicorn gap spacing can be attributed to the ion-enhanced field emissions. (c) 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. T2 - Contributions to Plasma Physics T1 - A particle-in-cell simulation of the breakdown mechanism in microdischarges with an improved secondary emission model VL - 47 IS - 3 SP - 165 EP - 172 DO - 10.1002/ctpp.200710023 ER -
@article{ author = "Radmilović-Rađenović, Marija and Rađenović, Branislav M.", year = "2007", abstract = "In this paper, the failure of the breakdown voltage from the Paschens law at extremely small electrode separations is studied. The electrical breakdown in microgaps occurs at the voltages far below the Paschen curve minimum breakdown limit and the modified Paschen curve should be used. Offered explanation for the departure from the Paschens law at small gap spacings is based on the increasing of the yield of the secondary electrons. The high electric fields existing in small gaps may enhance the secondary electron yield and this would lead to a lowering of the breakdown voltage and to the departure from the Paschens law. Particle-in-cell/Monte-Carlo (PIC/MCC) simulations with a new secondary emission model have been performed to estimate the importance of this mechanism in the discharge breakdown. Obtained simulation results suggest that deviations from the Paschen curve across the micron and submicorn gap spacing can be attributed to the ion-enhanced field emissions. (c) 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.", journal = "Contributions to Plasma Physics", title = "A particle-in-cell simulation of the breakdown mechanism in microdischarges with an improved secondary emission model", volume = "47", number = "3", pages = "165-172", doi = "10.1002/ctpp.200710023" }
Radmilović-Rađenović, M.,& Rađenović, B. M.. (2007). A particle-in-cell simulation of the breakdown mechanism in microdischarges with an improved secondary emission model. in Contributions to Plasma Physics, 47(3), 165-172. https://doi.org/10.1002/ctpp.200710023
Radmilović-Rađenović M, Rađenović BM. A particle-in-cell simulation of the breakdown mechanism in microdischarges with an improved secondary emission model. in Contributions to Plasma Physics. 2007;47(3):165-172. doi:10.1002/ctpp.200710023 .
Radmilović-Rađenović, Marija, Rađenović, Branislav M., "A particle-in-cell simulation of the breakdown mechanism in microdischarges with an improved secondary emission model" in Contributions to Plasma Physics, 47, no. 3 (2007):165-172, https://doi.org/10.1002/ctpp.200710023 . .