Self-assembly of metallic nanoparticles into one dimensional arrays

One-dimensional (1D) assemblies of nanoparticles are a burgeoning area of research due to their potential in electronics, photonics and sensing applications. They are also the focus of academic study, as they provide a link between the nanoscale world and meso-or macroscale objects. Despite their potential application in a variety of optoelectronic, electronic, photonic and magnetic applications, 1D assemblies of nanoparticles have not been as thoroughly studied or reviewed as their 2- and 3D counterparts. This review presents an overview of the methods used to prepare 1D arrays of metallic nanoparticles, covering both templated and template-free methods. The unique properties they possess are discussed, along with existing and predicted applications. The review finishes by addressing the current challenges facing the field of research and practical applications of 1D nanoparticle arrays.