Abstract
A mechanism for both the storage and the decay of charge in a charged silicon dioxide layer is proposed. The oxide layer needs neutral traps (NETs) to obtain stable trapped negative charge, after having been charged, resulting in an electret that can be applied in microphones. The hydrolysis of the silanol groups, followed by charge injection, results in an electrochemical reaction with immobile SiO- as one of the reaction products. Decay of the stable charge thus obtained can occur by the clustering of water molecules at inner silanol groups, resulting in a conductive hydrogen bonded network, which eventually leads to the discharge of the electret.
Original language | English |
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Title of host publication | 7th International Symposium on Electrets (ISE 7) |
Subtitle of host publication | 1991 Proceedings |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 16-26 |
Number of pages | 11 |
ISBN (Print) | 0-7803-0112-9 |
DOIs | |
Publication status | Published - 1 Jan 1992 |
Event | 7th International Symposium on Electrets, ISE 1991 - Berlin, Germany Duration: 25 Sep 1991 → 27 Sep 1991 Conference number: 7 |
Conference
Conference | 7th International Symposium on Electrets, ISE 1991 |
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Abbreviated title | ISE |
Country | Germany |
City | Berlin |
Period | 25/09/91 → 27/09/91 |