Surface recombination in breakdown time delay experiments: Effect of different cathode materials |
| |
| Authors: | V Lj Marković M M Pejović Z Lj Petrović |
| |
| Institution: | (1) Department of Physics, University of Ni , P.O. Box 91, 18001 Ni, Yugoslavia;(2) Faculty of Electronic Engineering, P.O. Box 73, 18001 Ni, Yugoslavia;(3) Institute of Physics, P.O. Box 68, 11080 Zemun, Yugoslavia;(4) Faculty of Electrical Engineering, University of Belgrade and MTT INFIZ, Yugoslavia |
| |
| Abstract: | The late afterglow in nitrogen with iron electrode is studied by the breakdown time delay method, i.e., by measuring the breakdown time delay td as a function of the afterglow time  . It is proposed that the cause of the secondary electrons initiating the breakdown is the energy of the surface recombination of nitrogen atoms on the iron electrode. The gas-phase and macrokinetic diffusive models are used to describe the experimental breakdown time delay data. By fitting the theoretical curve to the experimental data: (1) it has been confirmed that the recombination on the molybdenum glass is of the second order and the value of the surface recombination coefficient is determined at 4 mbar; (2) it has been shown that the surface recombination on the iron electrode is of the second order, and the effective recombination coefficients are determined; (3) the analytical form of the recombination coefficient as a function of the adsorption characteristics of surfaces and the pressure of the parent gas has been derived. In addition, the orders of surface recombination on the molybdenum-, aluminum-, and gold-plated electrode were determined by the same method. |
| |
| Keywords: | Surface recombination nitrogen afterglow breakdown time delay diffusion nitrogen atoms secondary electron yield Fe Cu Al Au Mo |
| 本文献已被 SpringerLink 等数据库收录！ |
|
