Tuning of the Humidity-Interference in Gas Sensitive Columnar ZnO Structures

Proceedings

Vallejos, Stella¹ 

关键词: gas sensor;    humidity;    ZnO;    AACVD;   

DOI  :  10.3390/proceedings1040417

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Gas microsensors based on columnar zinc oxide structures (rods and needles) with different aspect ratios and wetting properties are developed via aerosol-assisted chemical vapor deposition. The correlation between their wetting properties and degree of humidity-interference in gas sensing is presented. Gas sensing tests of these systems to hydrogen demonstrate noticeable lower humidity-interference for the columnar zinc oxide structures in the form of needles provided of higher hydrophobicity, as opposed to those in the form of rods, suggesting that a tuning of the wetting properties in metal oxides could allow for the humidity-resilient detection of gaseous analytes.

【 授权许可】

CC BY