Dear All,

There are several papers on using piezoelectric materials, such as ZnO and PVDF,
in audio frequency microphone applications. Since it is evident that PZT has
superior
features to ZnO and PVDF, why there is no one to use PZT in audio microphones?
Are there some fatal disadvantages determining that PZT is not possible in audio
applications?

Any information or comments would be highly appreciated. Thanks  in advance.

Zheyao

Institute of Microelectronics
Tsinghua University
Beijing 100084,
China
email: wang_zy@tsinghua.edu.cn