Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 160, Issue 1, Pages 753-759Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.08.059
Keywords
Semiconductor; Hollow nanofibers; Single capillary electrospinning; Acetone sensing
Funding
- Shanghai Leading Academic Discipline Project [B604]
- Foundation of He'nan Educational Committee [2009A150001]
- Foundation of He'nan Science and Technology Committee [092102210404]
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Solid and hollow ZnO nanofibers were fabricated through a facile single capillary electrospinning. The samples have been characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). A comparative acetone sensing study between the two samples were also performed. The results indicate that the ZnO hollow nanofibers show improved response to acetone at 220 degrees C with good selectivity and stability, which is attributed to the 1D hollow nanostructure. Especially, the sensor can detect acetone down to 1 ppm with obvious response (7.1). The formation mechanism and acetone sensing mechanism of the ZnO hollow nanofibers were also discussed. (C) 2011 Elsevier B.V. All rights reserved.
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