Ultrafast Multiplexed Electrostatic Printing of Lead Zirconate Titanate Films

In this study, we present an innovative multiplexed electrostatic microprinting technique for the fabrication of piezoelectric films. In an electric field, the liquid-air interface of the liquids/inks on a conduct disc is destabilized, leading to the formation of nanodroplets and subsequent film deposition. This microprinting method achieves a high printing speed of approximately 10<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">8</sup> μm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup>/s, which is an order of magnitude faster than traditional film deposition techniques. We successfully applied this method to create piezoelectric and dielectric ceramic films, as well as metal, polymer, and biological molecule films. The versatility of multiplexed electrostatic microprinting positions it as a promising technology for microelectromechanical systems, bioelectronics, and miniaturized devices.