TITLE

Charge trapping induced by plasma in alumina electrode surface investigated by thermoluminescence and optically stimulated luminescence

AUTHOR(S)
Ambrico, P. F.; Ambrico, M.; Schiavulli, L.; Ligonzo, T.; Augelli, V.
PUB. DATE
February 2009
SOURCE
Applied Physics Letters;2/2/2009, Vol. 94 Issue 5, pN.PAG
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The plasma of a dielectric barrier discharge can fill traps in the alumina that cover the electrode. Trap energies and lifetimes are estimated by thermoluminescence and optically stimulated luminescence. Comparison with similar results for traps created by other radiation sources clarifies the mechanisms regulating this effect. Alumina’s trap energies are approximately 1 eV, and the traps remain active for several days after plasma exposure. These results could be important to keep dielectric barrier discharge plasmas uniform since a trapped charge can be an electron reservoir.
ACCESSION #
36534207

 

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