Development of indium doped ZnO thin films for highly sensitive acetylene (C2H2) gas sensing

Dysprosium Doped Zinc Oxide for NO2 Gas Sensing

“…As a result, 150 °C has been demonstrated as the best operating temperature to detect NO 2 for both gas sensors. This optimum operating temperature agrees with previously reported ZnO-based sensors [ 42 , 43 , 44 ]. At low temperatures, the sensing responses are usually limited because the thermal energy is not enough for activating the metal oxide properties.…”

Development of highly sensitive Al, Ga, and In-doped ZnO films by the drop casting method for NH3 gas sensing

“…The introduction of Al/Ga/In ions into ZnO results in a noticeable red shift in the reflectance curves, which could be due to photoexcitation from VB to CB. Subsequently, the Kubelka–Munk (K–M) approach 29,30 was used to evaluate the optical band gap ( E g ) of the samples: F ( R ) = (1 − R ) 2 /2 R where R denotes the reflectance. The inset of Fig.…”

Handbook Science of Technology and Innovation

“…Metal oxides with structures in the nanometer range have been widely investigated for their potential applications in sectors such as electronics, optics, materials science and the biomedical sector. Among these, zinc oxide (ZnO) is a key material in the industry due to its versatility, high chemical stability, its high electron transport capacity and its optical, electronic, magnetic and mechanical properties derived from nanometric spatial confinement (Dev, 2021). It is a biocompatible and relatively cheap material and can be functionalized, which allows it to expand its potential medical applications.…”