Humidity Sensing Performance of V: TiO23D Nanostructure-based Humidity Sensor

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Author: Musa M.Z.; Mamat M.H.; Vasimalai N.; Shameem Banu I.B.; Parimon N.; Hassan H.; Malek M.F.; Rusop M.
• Format: Conference paper
• Language: English
• Published: IOP Publishing Ltd 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102244065&doi=10.1088%2f1755-1315%2f682%2f1%2f012073&partnerID=40&md5=3b21e6d88ff027da89c1c3c5072c08e5
• ISSN: 17551307
• DOI: 10.1088/1755-1315/682/1/012073

Titanium dioxide (TiO2) three-dimensional (3D) nanostructure has been prepared and doped with vanadium (V) using a solution immersion method. The resultant material exhibited improved performance in the role of the sensing element in resistive-type humidity sensor. The improvement is attributed to the arrangement of the nanorod structure which appears to be more closely packed in the V-doped TiO2 when compared to the undoped TiO2. Another possible reason is due to the increased of defect sites, namely oxygen vacancies of the V-doped sample which enhance the dissociation of the adsorbed water molecules. © Published under licence by IOP Publishing Ltd.