A simple all-solution approach to the synthesis of large ZnO nanorod networks

Abstract

Soft-lithography of Zn-loaded hydrogels and a subsequent hydrothermal growth process yield self-assembling networks of bridging ZnO nanorods (NRs). They are grown on seeding micropillars of ZnO until they touch, forming junctions that provide a preferred electrical path for the operative current of functional devices (<italic>e.g.</italic> gas senors).