Effect of surface charge trapping in dielectric barrier discharge
Effect of surface charge trapping in dielectric barrier discharge
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DOI：
10.1063/1.2838340
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发表时间：
2008-01
期刊：
影响因子：
--
通讯作者：
C.R. Li;M. Li;H. Zhan;X.X. Wang
中科院分区：
文献类型：
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作者：
C.R. Li;M. Li;H. Zhan;X.X. Wang
2mm空气间隙介质阻挡放电实验表明，用聚四氟乙烯作阻挡层的均匀放电气压范围比用石英或氧化铝作阻挡层的宽得多。通过表面电荷测量和热激励电流测量，得到了三种介质势垒表面俘获电荷的参数。结果表明，表面电荷陷阱对均匀放电有很大的影响，均匀放电所需的种子电子可以通过吸收的电子在浅阱中以低于1eV的能级解吸而产生。
The experiment of dielectric barrier discharge in a 2-mm air gap shows that the pressure range of a uniform discharge using polytetrafluoroethylene as barrier is much wider than that using quartz or alumina. The parameters of the charge trapped on the surface of these three dielectric barriers were obtained by surface charge measurement and thermally stimulated current measurement. It was found that surface charge trapping has much influence on the uniform discharge, i.e., the seed electrons necessary for uniform discharge may be produced by the desorption of the absorbed electrons in the shallow trap with energy level lower than 1 eV.