Highly sensitive nitric oxide gas sensor based on ZnO-nanorods vertical resistor operated at room temperature

Pragya Singh, Li Lun Hu, Hsiao-Wen Zan*, Tseung-Yuen Tseng

*此作品的通信作者

研究成果: Article同行評審

22 引文 斯高帕斯(Scopus)

摘要

We successfully demonstrated a simple and low-cost nitric oxide (NO) gas sensor to deliver parts-per-billion (ppb) regime detection at room temperature operation. A vertical-channel ZnO nanorods resistor is fabricated by putting silver nanowire electrode onto the hydrothermal ZnO nanorods film. With suitable process condition, the nanorods film exhibits a uniform morphology to enable the formation of gas-permeable nanowire top electrode while also the nanorods provide good surface-to-volume ratio to deliver strong reaction with NO gas. A detection limit to 10 ppb NO is observed while the sensing dynamic range from 10 ppb to 100 ppb is obtained. The sensor is reversible and the real-time sensing response is within 30 s. The results benefit the NO breath detection for patients with chronic inflammatory airway disease, such as asthma.

原文English
文章編號095501
頁(從 - 到)1-7
頁數7
期刊Nanotechnology
30
發行號9
DOIs
出版狀態Published - 1月 2019

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