Piezoelectric article with dielectric layer and co-planar electrodes

A composite article comprising:

• 1) a first dry piezoelectric layer (first dry PL) comprising a piezoelectric material and having first and second opposing surfaces,
• 2) one or more dry dielectric layers arranged contiguously with at least one of the first and second opposing surfaces of the first dry PL, wherein at least one dry dielectric layer (dry DL-P) consists essentially of:
• (a′) a dielectric material;
• and
• (b) particles distributed within the (a′) dielectric material, the (b) particles having a Young's modulus that is different from the Young's modulus of the (a′) dielectric material by at least 10%, and which (b) particles have a d50 of at least 500 nm and up to and including 500 μm and a polydispersity coefficient that is less than or equal to 3, provided that the weight ratio of the (b) particles to the (a′) dielectric material is at least 0.01:1 and up to and including 10:1;
• and
• 3) a pair of non-electrically-connected co-planar patterned electrodes that are arranged contiguously to at least one of the first and second opposing surfaces of the first dry PL, and when each of the pair of non-electrically-connected co-planar patterned electrodes is arranged adjacent to an insulating substrate, it exhibits a resistivity of less than 10,000 ohms-cm, and
• optionally, the at least one dry DL-P further includes (c) a binder material that is non-electrically conductive and has a weight average molecular weight of at least 5,000.