https://unisapressjournals.co.za/index.php/NH/issue/feed 2024-04-04T06:47:47+00:00 Malek Maaza NH1@unisapressjournals.co.za Open Journal Systems <p><strong>Open Access</strong></p> <p>The Nano-Horizons journal is intended to be the voice of the African nano-community in this fast-rising multidisciplinary field at the interface of Physics, Chemistry, Biology, Engineering, Materials science, Computation &amp; modelling. The focus is the multidisciplinary field of Nanosciences &amp; Nanotechnologies. </p> https://unisapressjournals.co.za/index.php/NH/article/view/14260 2024-04-04T06:47:47+00:00 Esmaeil Salahi e.salahi@merc.ac.ir Hoda Enayati Taloobaghi hoda.eyt@gmail.com Mohammad Mahdi Shahidi mmahdishahidi@gmail.com Fabian I. Ezema fabian.ezema@unn.edu.ng

<p>In this study, we prepared a ZnO thin film using the sol-gel spin-coating method on glass substrates. We repeated the synthesis procedure once, twice and four times to obtain the samples. We then investigated the FESEM images, XRD diffractograms, Hall effect and dielectric measurement of the samples. We observed the phase transition from the wurtzite to the zinc blende phase as a result of the number of repetitions. The films exhibited direct band gaps ranging from 3.2 eV to 3.3 eV. This result indicate that the two-times synthesis process has considerably affected the morphology and also improved the crystallinity of the layer. The sample of which the surface was covered with nearly uniform short nanorod grains with an average diameter of ~ 180 nm showed the highest sensitivity to ultraviolet light.</p>

2024-04-04T00:00:00+00:00 Copyright (c) 2024 Esmaeil Salahi, Hoda Enayati Taloobaghi, Mohammad Mahdi Shahidi, Fabian I. Ezema