One-Dimensional Nanomaterials

Introduction

One-dimensional (1D) nanostructures, are commonly defined as linear structures with diameter less than 100 nm, including nanowires, nanotubes and nanorods. 1D nanomaterials have been regarded as the most promising building blocks for nanoscale electronic and optoelectronic devices. In addition, 1D nanomaterials can offer large surface area, facile strain relaxation upon cycling, and efficient electron transport pathway to achieve high electrochemical performance. Hence, 1D nanomaterials have attracted increasing interest in many application fields.

One-Dimensional Nanomaterials Fig.1. a) Nanowires; b) nanotubes;c) nanorods

Representative 1D Nanomaterials

  • Carbon Nanotubes (CNTs): CNTs are allotropes of carbon with a cylindrical nanostructure. These cylindrical carbon molecules have extraordinary thermal conductivity, mechanical and electrical properties, carbon nanotubes find applications, which are valuable for nanotechnology, electronics, optics and other fields of materials science and technology.

  • Silver Nanowires (Ag NWs): Ag NWs are particularly attractive for stretchable and wearable electronics because Ag has the highest electrical conductivity among all the metal materials.

  • Copper Nanowires (Cu NWs): Cu NWs have been regarded as ideal substitute materials for Ag NWs which unavoidably face cost or low-abundance issues. Cu NWs may offer cost benefits for commercial applications of soft conductors and sensors because of the high copper abundance on earth.

  • Zinc Oxide Nanowires (ZnO NWs): ZnO NWs have received extensive attention for strain sensors and wearable energy devices because of their novel hierarchical structure, high electron mobility, and unique piezoelectric properties.

  • 1D Polymeric Nanomaterials: 1D polymer nanomaterials offer a variety of benefits, including large surface area, high aspect ratio and excellent softness when compared to inorganic nanomaterials.

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