DocumentCode
1529579
Title
Direct-Vapor-Phase Grown 
Micronanostructures for Ethanol, Acetone, and Propanol Gas Sensor
Author
Hullavarad, Nilima V. ; Hullavarad, Shiva S.
Author_Institution
Office of Electron. Miniaturization, Univ. of Alaska Fairbanks, Fairbanks, AK, USA
Volume
9
Issue
5
fYear
2010
Firstpage
625
Lastpage
629
Abstract
Iridium oxide (IrO2 ) micronanostructures are grown on fused silica (FS), Si (1 0 0) and copper (Cu) substrates using direct-vapor-phase (DVP) technique and investigated for gas-sensing properties. The shape and size of IrO2 micronanostructures depend on the rate of evaporation of source material. The sensitivity of IrO2 to ethanol, acetone, and propanol is tested under similar test conditions. The sensitivity is clearly distinguishable by measuring the change in the response (recovery) time for ethanol, acetone, and propanol, and are measured to be 3 (2.9 s), 4.7 (3.9 s), and 5.1 s (4 s), respectively.
Keywords
crystal microstructure; gas sensors; iridium compounds; nanostructured materials; semiconductor growth; semiconductor materials; vapour phase epitaxial growth; Cu; IrO2; Si; SiO2; acetone; direct-vapor-phase growth; direct-vapor-phase technique; ethanol; gas sensor; gas-sensing properties; micronanostructure; propanol; source material evaporation; Chemical sensors; Copper; Electrodes; Ethanol; Ferroelectric materials; Gas detectors; Gases; Nanostructures; Optical materials; Testing; Direct vapor phase (DVP); gas sensor; iridium oxide ( $hbox{IrO}_{2}$ ); nanostructures; nanotubes;
fLanguage
English
Journal_Title
Nanotechnology, IEEE Transactions on
Publisher
ieee
ISSN
1536-125X
Type
jour
DOI
10.1109/TNANO.2010.2056696
Filename
5504238
Link To Document