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2 Feb 2009

Volume 94, Issue 5, Articles (05xxxx)

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Appl. Phys. Lett. 94, 059901 (2009); http://dx.doi.org/10.1063/1.3086725 (3 pages)

Yuta Tsukada, Tsuyoshi Honma, and Takayuki Komatsu
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Charge trapping induced by plasma in alumina electrode surface investigated by thermoluminescence and optically stimulated luminescence

P. F. Ambrico, M. Ambrico, L. Schiavulli, T. Ligonzo, and V. Augelli

Appl. Phys. Lett. 94, 051501 (2009); http://dx.doi.org/10.1063/1.3076122 (3 pages) | Cited 3 times

Online Publication Date: 3 February 2009

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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.
Show PACS
52.40.Hf Plasma-material interactions; boundary layer effects
78.60.Kn Thermoluminescence
78.55.Hx Other solid inorganic materials
52.80.-s Electric discharges
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