Fabrication of ZnO Nanowall-Based Hydrogen Gas Nanosensor

Tse Pu Chen; Sheng Po Chang; Shoou Jinn Chang

doi:10.4028/www.scientific.net/AMR.684.21

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 684Fabrication of ZnO Nanowall-Based Hydrogen Gas...

Fabrication of ZnO Nanowall-Based Hydrogen Gas Nanosensor

Abstract:

Two-dimensional ZnO nanowalls were rapidly grown on glass substrate by thermal evaporation at low temperature without any catalysts or the pre-deposition of a ZnO seed layer on the substrate. Most of the ZnO nanowalls grown at 450°C were vertical on substrate and they were about 70-200 nm thick and 2 µm long. The room-temperature photoluminescence (PL) spectra showed a strong intrinsic ultraviolet (UV) emission and a weak defect-related emission. Hydrogen-sensing characteristics of the ZnO nanowalls have been investigated, and that make them become attractive candidates for gas sensor.

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Periodical:

Advanced Materials Research (Volume 684)

Pages:

21-25

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.684.21

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Online since:

April 2013

Authors:

Tse Pu Chen, Sheng Po Chang, Shoou Jinn Chang

Keywords:

Nanowalls, Sensor, Zinc Oxide (ZnO)

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