A flexo electric material generates an electric charge when subjected to mechanical stress, while a peizo electric material produces an electric charge when subjected to an external electric field.
Flexo electric materials have a non-centrosymmetric crystal structure, which allows for the separation of positive and negative charges when subjected to stress. Peizo electric materials have a centrosymmetric crystal structure, but the presence of polar molecules allows for the separation of charges under an external electric field.
Flexo electric materials are commonly used in sensors, actuators, and energy harvesting devices. Peizo electric materials are used in ultrasound and sonar technology, as well as in electronic devices such as speakers and microphones.
No, flexo electric and peizo electric materials have different properties and mechanisms of generating electric charge. They are not interchangeable and are used for different purposes.
Flexo electric and peizo electric materials generate an electric charge, while piezoresistive materials change their electrical resistance when subjected to stress. Additionally, piezoresistive materials do not have a polarized crystal structure like flexo electric and peizo electric materials.