Fabrication and characterization of nano-gas sensor arrays

Journal Article · Mon Mar 30 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4914233· OSTI ID:22391306

Nasser, A. A. A.,

A novel structures of Nanomaterials gas sensors array constructed using ZnO, and ZnO doped with Al via sol-gel technique. Two structure arrays are developed; the first one is a double sensor array based on doping with percentages of 1% and 5%. The second is a quadrature sensor array based on several doping ratios concentrations (0%, 1%, 5% and 10%). The morphological structures of prepared ZnO were revealed using scanning electron microscope (SEM). X-ray diffraction (XRD) patterns reveal a highly crystallized wurtzite structure and used for identifying phase structure and chemical state of both ZnO and ZnO doped with Al under different preparation conditions and different doping ratios. Chemical composition of Al-doped ZnO nanopowders was performed using energy dispersive x-ray (EDS) analysis. The electrical characteristics of the sensor are determined by measuring the two terminal sensor’s output resistance for O{sub 2}, H{sub 2} and CO{sub 2} gases as a function of temperature.

• OSTI ID: 22391306
• Journal Information: AIP Conference Proceedings, Vol. 1653, Issue 1; Conference: APMAS 2014: 4. International Congress in Advances in Applied Physics and Materials Science, Fethiye (Turkey), 24-27 Apr 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
CARBON DIOXIDE
CHEMICAL COMPOSITION
CHEMICAL STATE
CONCENTRATION RATIO
CUBIC LATTICES
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
FABRICATION
NANOMATERIALS
NANOSTRUCTURES
POWDERS
QUADRATURES
SCANNING ELECTRON MICROSCOPY
SENSORS
SOL-GEL PROCESS
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
ZINC OXIDES