Optical properties of tetrapod nanostructured zinc oxide by chemical vapour deposition

Abstract

This work studies the effects of annealing temperature ranging from 100-500 ºC towards its physical and optical properties. FESEM images showed that the structural properties of tetrapod nanostructured ZnO thin film were affected by the annealing temperature. The thickness of thin film is strongly support the FESEM analysis. The optical band gap energy (E g ) was evaluated at 2.78 -3.06 eV, which the ZnO thin film was found to be influenced by the change of interatomic spacing of semiconductor. The result shows that the higher annealing temperature greatly affects the physical structure of tetrapod nanostructured ZnO thin film to become narrow and longer length.

Morphological evolution driven semiconducting nanostructures for emerging solar, biological and nanogenerator applications

“…44 Similarly, a cost-effective and simple thermal evaporation process was successfully employed to produce various morphologies of SnO 2 nanostructures for optoelectronic, sensing and energy applications. [45][46][47][48][49][50][51][52][53][54] The CVD-grown SnO 2 nanostructures for optical and sensor applications have been also reported. 45 The sol-gel approach is a well-known and popular process for the successful synthesis of various metal oxide nanomaterials.…”

Optical Transition Rates in a Cylindrical Quantum Wire with Parabolic and Inverse Parabolic Electric Confining Potentials in a Magnetic Field

“…et al, 2018), among others. These techniques enable fabrication of nanostructures of different geometries, for example, cylinders (Kim and No, 2017;Giammaria et al, 2018;Foster et al, 2019), spheres (Ahmed et al, 679;Malm and Vesikari, 2017), tetrapods (Rahman et al, 2017), and so forth. These nanostreuctures are central to the operation of nanodevices, and have applications in medicine (Batul et al, 2017), sensors (Wang et al, 2016;Leonardi, 2017), optoelectronics (Wada, 2000;Lin et al, 2019), photoelectrochemical (Shen et al, 2018) and display (Panfil et al, 2018) applications, among others.…”