Abstract
A polycrystalline PMN-PZT film with a composition close to the morphotropic phase boundary (MPB) and a thickness of approximately 2 μm was successfully prepared on a silicon lens using the sol-gel method. This film exhibited excellent dielectric, ferroelectric, and piezoelectric behavior. A dielectric constant (εr) of 1756 at 1 kHz, a remnant polarization (Pr) of 22 μC/cm2, and an effective piezoelectric coefficient (d33,f) of 150 pm/V were obtained, indicating that PMN-PZT film on silicon lens is a promising candidate for tightly focused ultra-high ultrasound transducer applications.
| Original language | English |
|---|---|
| Pages (from-to) | 4243-4247 |
| Number of pages | 5 |
| Journal | Ceramics International |
| Volume | 41 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Apr 2015 |
Keywords
- PMN-PZT film
- Silicon lens
- Ultrahigh frequency ultrasound
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