Room temperature ethanol sensor based on ZnO prepared via laser ablation in water

Room temperature ethanol sensor based on ZnO prepared via laser ablation in water

The present work reports on room-temperature ethanol sensing performance of ZnO nanospheres and nanorods prepared using pulsed laser ablation in water. Nanosecond and millisecond lasers were used to prepare ZnO nanomaterials with hexagonal wurtzite crystal structure. The two contrasting nanostructur...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics Vol. 56; no. 8; pp. 80304 - 80306
Main Authors: Kondo, Takahiro, Sato, Yoshihiro, Kinoshita, Masahiro, Shankar, Prabakaran, Mintcheva, Neli N., Honda, Mitsuhiro, Iwamori, Satoru, Kulinich, Sergei A.
Format: Journal Article
Language:English
Published: Tokyo The Japan Society of Applied Physics 01-08-2017
Japanese Journal of Applied Physics
Subjects:
Acetone
Ammonia
Crystal structure
Ethanol
Gas sensors
Laser ablation
Nanomaterials
Nanorods
Nanospheres
Pulsed lasers
Room temperature
Volatile compounds
Wurtzite
Zinc oxide
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Summary:The present work reports on room-temperature ethanol sensing performance of ZnO nanospheres and nanorods prepared using pulsed laser ablation in water. Nanosecond and millisecond lasers were used to prepare ZnO nanomaterials with hexagonal wurtzite crystal structure. The two contrasting nanostructures were tested as gas sensors towards volatile compounds such as ethanol, ammonia, and acetone. At room temperature, devices based on both ZnO nanomaterials demonstrated selectivity for ethanol vapor. The sensitivity of nanospheres was somewhat higher compared to that of nanorods, with response values of ∼19 and ∼14, respectively, towards 250 ppm. Concentrations as low as 50 ppm could be easily detected.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.56.080304