Nanowerk  December 23, 2024 3D buckling makes stretchability possible in devices but, when applied to piezoelectric devices due to the uneven distribution of internal strain during deformation. When strains with opposite directions simultaneously affect piezoelectric materials, the electric output can decrease due to cancellation. Researchers in the Republic of Korea developed an electrode design tailored to the direction of strain and a circuit configuration that prevented electric output cancellation. These designs provided stretchability to piezoelectric  nanogenerators (PENGs) and minimized electric output loss. Using an inorganic piezoelectric material with a high piezoelectric coefficient, they demonstrated the dynamics of energy harvesting. In […]