Enhanced gas-sensing to low-concentration ethanol gas from 3-dimensional (3D) urchin-like ZnO micro/nanospheres

被引：6

作者：

Qu, Yuwei ^{[1
]}

Song, Zhichao ^{[1
]}

Zhang, Jun ^{[1
]}

机构：

[1] Yantai Univ, Sch Phys & Elect Informat, Yantai 264005, Peoples R China

来源：

MATERIALS LETTERS | 2023年 / 335卷

基金：

中国国家自然科学基金;

关键词：

3D ZnO nanostructures; Morphology characterization; Gas sensing properties;

D O I：

10.1016/j.matlet.2023.133817

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly sensitive and long-term stable ethanol gas sensors based on 3D urchin-like ZnO micro/ nanospheres are synthesized. The formation mechanism of the 3D urchin-like ZnO structure is analyzed. The 3D urchin-like ZnO micro/nanospheres sensor displayed a high sensitivity of 15.0, a fast response time of 14 sec, and a recovery time of 7 sec when detecting 200 ppm ethanol gas at the optimal operating temperature of 280 degrees C. Moreover, the sensor is in the low concentration of ethanol gas for 450 days, in this case, the sensitivity of the sensor is 5.9, when detecting 200 ppm ethanol gas at an operating temperature 280 degrees C. The prepared 3D urchin-like ZnO micro/nanospheres have higher response strength to low-concentration ethanol gas and still have good stability after long-term storage

引用

页数：3

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