Is it possible to have long-term relaxation of the voltage arising due to the piezoelectric effect under static load in nanomaterials?

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Md. Mominul Islam

For polymer and composite materials long-term relaxation may occur if the material behaves as a capacitor. Test of capacitance profile of material with capacitance hysteresis seems to be adequate to justify the matter.

Salvatore Pullano

what is the material are you talking about? try to take into consideration to evaluate its internal losses

Igor Pronin

Dear Dr. Pullano! Thanks for the reply!

I discovered this effect in films ZnO obtained by the sol-gel method.

and how do you measure the relaxation?

minimum relaxation time - 500 minutes ...

Very long relaxation time...