Investigation of structures and properties of dc magnetic control reactive sputtering deposited Ta2O5 electret films

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

By studying the effects of sputtering current and pressure of gas on the growth rate and quality of Ta2O5 thin films, we have obtained the following optimum technical parameters: Sputtering current-0.6 A; oxygen pressure lower than 3 Pa (for such conditions, the sputtering rate is greater than 64 nm/min.); even and homogeneous film. Using XRD, TEM and SEM measurements, the change of film structure was observed before and after annealing at high temperature. Using XPS, the chemical structure and composition of the Ta2O5 surface was analysed. It is experimentally shown that this film after annealling possesses multicrystalline structure containing Ta2O5 and TaO along (0001) as a textured direction, and excellent electrical, chemical, piezoelectric and sensitive properties.

Original languageEnglish
Title of host publication8th International Symposium on Electrets, ISE 1994 - Proceedings
EditorsJ. Lewiner, C. Alquie, D. Morisseau
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages736-741
Number of pages6
ISBN (Electronic)0780319400, 9780780319400
DOIs
StatePublished - 1994
Externally publishedYes
Event8th International Symposium on Electrets, ISE 1994 - Paris, France
Duration: 7 Sep 19949 Sep 1994

Publication series

Name8th International Symposium on Electrets, ISE 1994 - Proceedings

Conference

Conference8th International Symposium on Electrets, ISE 1994
Country/TerritoryFrance
CityParis
Period7/09/949/09/94

Fingerprint

Dive into the research topics of 'Investigation of structures and properties of dc magnetic control reactive sputtering deposited Ta2O5 electret films'. Together they form a unique fingerprint.

Cite this