Analyzing the Mechanism of Zinc Oxide Nanowires Bending and Bundling Induced by Electron Beam under Scanning Electron Microscope Using Numerical and Simulation Analysis

Abstract

The bending effect of self-catalyst zinc oxide nanowires on a photoconducting behavior has been investigated by in-situ scanning electron microscope method and interpreted by analytical modeling. Zinc oxide NWs tend to incline due to geometric instability and because of the piezoelectric properties, which was confirmed by scanning electron microscope images. A cantilever bending model adequately describes the bending and bundling events, which are linked to the electrostatic interaction between nanowires. The light absorption of zinc oxide nanowires in the visible and near infrared bands has been modelled using the finite difference time domain method. The influence of the density of nanowires (25%, 50%, 75%) and the integration of plasmonic nanoparticles distributed on the seed layer (with varied radii) on the light absorption of zinc oxide nanowires was studied using simulation analysis. We have shown that the geometry of zinc oxide nanowires in terms of length, separation distance, and surface charge density affects the process of zinc oxide nanowires bending and bundling and that absorption will be maximized by integrating Au plasmonic nanoparticles with a radius of 10 nm.

Nano Revolution: “Tiny tech, big impact: How nanotechnology is driving SDGs progress"

“…Creating new materials with unique features, such as stronger and more resilient building materials [ [41] , [42] , [43] , [44] , [45] , [46] ], can enhance the performance of already-existing infrastructure. Nanotechnology can also advance renewable energy sources and increase energy efficiency [ 21 , [47] , [48] , [49] , [50] ], spurring innovation in the energy industry. Furthermore, manufacturing techniques based on nanotechnology [ 51 , 52 ] can increase productivity and decrease waste, resulting in more environmentally friendly and economically viable production techniques.…”

Enhanced Broadband Metamaterial Absorber Using Plasmonic Nanorods and Muti-Dielectric Layers Based on ZnO Substrate in the Frequency Range from 100 GHz to 1000 GHz

“…Plasmonic nanorods distributed on the substrate layer change the absorbed optical power inside the proposed structure, the absorption depends on the maximum reflectivity. Nanorod shape and size are the main parameters that affect the absorbed optical power in addition to the relative permittivity of the plasmonic nanorods and dielectric constant of the surrounding medium [35]. The maximum absorption occurred at the wavelength known as λ max , the maximum peak of the wavelength, which can be calculated using Equation (7).…”

“…Hence, the plasmonic nanorod dielectric permittivity can be calculated using a multioscillator Drude-Lorentz model [35] as shown in Equation (8):…”

Influence of Temperature on the Growth of Vertically Aligned ZnO Nanowires in Wet Oxygen Environment

“…At room temperature, ZnO nanostructure is well characterized by its 3.37 eV band gap and 60 meV excitation energy. Due to their optical functions, the ZnO nanostructures become very important and a potential nanomaterial for several future applications [4][5][6][7][8][9][10]. ZnO material can form different 1-D nanostructures such as nanowires (NWs) and nanorods, and zero-dimensional nanostructures (0D) such as nanoparticles, using different growth techniques [11][12][13][14].…”