Millimeter-sized single crystalline ZnO networks composed of nanostructures

Abstract

Feather-like ZnO single-crystalline networks are synthesized via a facile one-step catalyst-free chemical vapor deposition method. Their axial size extends to millimeter-scale along their backbone while their construction unit is submicron, naturally constructing a bridge between microcosm and macrocosm. The whole feather-like network is an interconnection of a single crystal ZnO without any phase interface or crystal boundary in the junctions. The millimeter-scale ZnO networks have single-crystal nature, parallel connectivity, plenty of holes and large specific surface area, with which potential applications for carrier transporters, filters, sensors, wave-absorbing materials and interconnected computing units are expected.