ARTICLE | doi:10.20944/preprints202311.1301.v1
Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: printed flexible sensors; conductive composite; porous structure; micropyramide structure; multifunctional force detection.
Online: 21 November 2023 (10:06:26 CET)
Porous structures and micropatterning surfaces play a crucial role in the development of highly sensitive force sensors. However, achieving these two conductive architectures typically requires complex materials synthesis and expensive manufacturing processes. In this study, we introduce a novel conductive composite film featuring a porous/micropyramid hybrid conductive architecture, which is achieved through a straightforward process of materials mixing and one-step screen printing. By utilizing a deep eutectic solvent in the ink component, micropores are induced in the printed composite, while the mesh of the screen mask acts as a template, resulting in a micropyramid film surface. We have successfully realized highly sensitive flexible force sensors with multifunctional capabilities for perceiving normal force and shear force.