Abstract

In this study, the charge trapping effect in alumina dielectric surfaces has been deeplyinvestigated by means of a dedicated dielectric barrier discharge apparatus in differentdischarge regimes and gas mixtures. This work further validates our previous findings in thecase of air discharges in a filamentary regime. Long lasting charge trapping has beenevidenced by ex situ thermoluminescence characterizations of alumina dielectric barrier platesexposed to a plasma. The density of trapped surface charges was found to be higher in theglow discharge with respect to pseudo-glow and filamentary regimes, and for all regimes theminimum trap activation temperature was 390K and the trap energy was less than or around1 eV. This implies that in the case of glow discharges a higher reservoir of electrons is present.Also, the effect was found to persist for several days after running the discharge.

Autore Pugliese

• Dilecce Giorgio , Ambrico Marianna , Ambrico Paolo Francesco

Tutti gli autori

• P.F. Ambrico ; M. Ambrico ; A. Colaianni ; L. Schiavulli ; G. Dilecce ; S. De Benedictis

Titolo volume/Rivista

Journal of physics. D, Applied physics

Anno di pubblicazione

2010

ISSN

1361-6463

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

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Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile