Photodimerization induced hierarchical and asymmetric iontronic micropatterns

Abstract

Hierarchical surface micro/nanopatterns enable iontronic materials to show performance enhancement in piezoionic mechanoreception and skin-interfaced coupling electrode adhesion. Here, the author proposes a facile and robust method to fabricate hierarchical and asymmetrical iontronic micropatterns through programmed regulation of the internal stress distribution and local ionic migration.