Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Gazi Üniversitesi, Fen Bilimleri Enstitüsü, Turkey
Approval Date: 2017
Student: HAKAN SÜREL
Supervisor: SELİM ACAR
Open Archive Collection: AVESIS Open Access Collection
Abstract:In this study, Ni-doped Zn1-xNixO (x = 0,05-0,10-0,15-0,20) thin films were grown on glass substrate by Successive Ionic Adsorption and Reaction (SILAR) method to detect nitrogen monoxide gas. The structural and optical characteristics of the sensors were investigated with the help of X-ray diffraction device (XRD), Scanning Electron Microscope (SEM) and Optical Absorption measurements. From X-ray diffraction patterns, it was determined that all the films were in crystal structure. From the SEM images, it was observed that the morphological properties of the sensors changed depending on the nickel concentration. From the optical absorption measurements, as increasing doping ratio the forbidden energy values increased. Gas detection measurements were made at 30-135 °C temperature range to determine the working temperature of the produced structures as gas sensors. At 95 °C the highest sensitivity was achieved. Among all sensors, Zn0,90Ni0,10O showed the highest sensitivity.