Recent Advances in Directed Assembly of Nanowires or Nanotubes

Abstract

Nanowires and nanotubes of diverse material compositions, properties and/or functions have been produced or fabricated through various bottom-up or top-down approaches. These nanowires or nanotubes have also been utilized as potential building blocks for functional nanodevices. The key for the integration of those nanowire or nanotube based devices is to assemble these one dimensional nanomaterials to specific locations using techniques that are highly controllable and scalable. Ideally such techniques should enable assembly of highly uniform nanowire/nanotube arrays with precise control of density, location, dimension or even material type of nanowire/nanotube. Numerous assembly techniques are being developed that can quickly align and assemble large quantities of one type or multiple types of nanowires through parallel processes, including flow-assisted alignment, Langmuir-Blodgett assembly, bubble-blown technique, electric/magnetic-field directed assembly, contact/roll printing, knocking-down, etc.. With these assembling techniques, applications of nanowire/nanotube based devices such as flexible electronics and sensors have been demonstrated. This paper delivers an overall review of directed nanowire assembling approaches and analyzes advantages and limitations of each method. The future research directions have also been discussed.

Stable and metallic borophene nanoribbons from first-principles calculations

“…[2][3][4] One of the significant challenge that impedes their practical applications, however, is the development of integrated nano-electronics, which is still in its infancy. 11,12 In previous investigations, the metal nanowires, 8,[13][14][15] graphene nanoribbons, [16][17][18][19] and carbon nanotubes 11,15,20 have been considered as nanoscale electrical connections. [7][8][9][10] Ideally, the desired onedimensional nanowires for interconnects of nano-devices should possess (i) low electrical resistivity and Ohmic conductance, (ii) high stability, (iii) well defined atomic structures and (iv) good rigidities.…”

Focused Energy Field Method for the Localized Synthesis and Direct Integration of 1D Nanomaterials on Microelectronic Devices

“…Other methods using electrostatic and magnetic forces are only valid for charged or ferromagnetic nanomaterials. In addition, the methods using shear force and bubble film have difficulties in the control of the location of NWs and the dielectrophoresis process may induce undesired electrochemical reactions in the liquid solution …”

Torsional Characteristics of Single Walled Carbon Nanotube with Water Interactions by Using Molecular Dynamics Simulation

“…Research in carbon nanotubes (CNTs) has gained enormous interest in nanotechnology and materials science due to its remarkable physical and mechanical properties [1,2]. CNTs possess a unique combination of high strength and ultra-light weight which makes it a promising application in nanoelectromechanical systems (NEMS) such as springs [3], and oscillators [4].…”