Local Fatigue Evaluation in PZT Thin Films with Nanoparticles by Piezoresponse Force Microscopy
Figure 3
Piezoresponse images of the PZT series films. (a) ~ (c) are piezoresponse images for PZT, PZT-BT1, and PZT-BT5 as-deposited films, respectively; (d) ~ (f) show piezoresponse images on fatigued PZT series films; (g) ~ (i) show corresponding poling effects on these films. The black frame represents poling area produced by moving the cantilever while applying a positive 20 Vdc voltage. Unswitchable domains appear as dark color.
