Development of a Gas Sensor for Green Leaf Volatile Detection

• 全文链接

绿叶挥发物检测气体传感器的研制

关键词：

来源：

IEEE 会议

全文链接：

//agri.nais.net.cn/topic/downloadFile/9c72ae98-f4ef-4bb2-8770-a71d0fc80bd2

来源地址：

https://ieeexplore.ieee.org/abstract/document/9495597

资源所属：

茶学研究专题

类型：

会议论文

语种：

英语

原文发布日期：

2021-08-06

摘要：

This paper reports the development of a high-sensitivity gas sensor and the demonstration of selectively detecting green leaf volatiles (GLV, here hexanal) released from damaged plant leaves. The developed sensor is a conductivity sensor that utilized a 5.2-nm gap as the key detection site between electrodes. The gap was coated with with customized molecular probes toward binding to hexanal. The fabricated sensor demonstrated the detection of a GLV, hexanal, from the collected gas samples from damaged plant leaves, sorghum. Gas samples were collected into a tedlar bag from a glass jar containing damaged sorghum leaves. When exposed to hexanal concentrations from 77.7 to 5181.3 ppm, it produced output signal changes in resistance by 1.64~4.45 times. The sensor response time was measured as 41.6 min at a hexanal concentration of 77.7 ppm.