Green Fabrication of Freestanding Piezoceramic Films for Energy Harvesting and Virus Detection.

ABSTRACT: Most electronics such as sensors, actuators and energy harvesters need piezoceramic films to interconvert mechanical and electrical energy. Transferring the ceramic films from their growth substrates for assembling electronic devices commonly requires chemical or physical etching, which comes at the sacrifice of the substrate materials, film cracks, and environmental contamination. Here, we introduce a van der Waals stripping method to fabricate large-area and freestanding piezoceramic thin films in a simple, green, and cost-effective manner. The introduction of the quasi van der Waals epitaxial platinum layer enables the capillary force of water to drive the separation process of the film and substrate interface. The fabricated lead-free film, [Formula: see text] (BCZT), shows a high piez

SUBMITTER: Liu S 

PROVIDER: S-EPMC10199448 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature