Composite article with 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, and
• 2) a pair of non-electrically-connected co-planar patterned electrodes that are arranged contiguously with at least one of the first and second opposing surfaces of the first dry PL, each of the pair of non-electrically-connected co-planar patterned electrodes consisting essentially of:
• (a) an electrically-conductive material;
• and
• (b) particles distributed within the (a) electrically-conductive material, the (b) particles having a Young's modulus that is different from the Young's modulus of the (a) electrically-conductive 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 of less than or equal to 3, provided that the weight ratio of the (b) particles to the (a) electrically-conductive material is at least 0.01:1 and up to and including 10:1, and
• provided that:
• 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, each of the pair of non-electrically-connected co-planar patterned electrodes further includes (c) a binder material that is non-electrically-conductive and has a weight average molecular weight of at least 5,000.