TiO2:WO3 composite humidity sensors doped with ZnO and CuO investigated by impedance spectroscopy

For impedance-type sensors based on semiconducting metal oxides, the overall conduction mechanisms strongly influence the magnitude and the direction of the sensor signal variation. For humidity, in particular, the electronic/ionic charge-transfer reactions that take place at the semiconductor surfa...

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Bibliographic Details
Main Author: Faia, Pedro M. (author)
Other Authors: Jesus, Emanuel L. (author), Louro, Cristina S. (author)
Format: article
Language:eng
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/10316/27845
Country:Portugal
Oai:oai:estudogeral.sib.uc.pt:10316/27845