Development of a Cloud-Based Epidermal MoSe2 Device for Hazardous Gas Sensing
Development of a Cloud-Based Epidermal MoSe2 Device for Hazardous Gas Sensing
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DOI：
10.1002/adfm.201900138
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发表时间：
2019-05-02
影响因子：
19
通讯作者：
Zaghloul, Mona E.
中科院分区：
文献类型：
--
作者：
Guo, Shiqi;Yang, Dong;Zaghloul, Mona E.
有毒气体如NO2和刺激性气体如NH3是引发哮喘患者呼吸系统恶化的两个最严重的方面。监测和记录高风险气体对于追踪疾病和提醒患者非常重要，因为人类可能暴露在不显眼的气体中。目前的检测器缺乏便携性，不能提供日常实时检测。这项工作开发了一个轻，廉价的表皮气体传感器的基础上超大的MoSe 2纳米片。采用金辅助剥离法制备了MoSe2纳米片，并对薄膜的电学和光学性能进行了表征。一个高性能的气体传感器的NO2和NH3，它可以集成到人体皮肤上，制造和显示高达30%的拉伸应变的稳定性。特别是，该设备能够以快速响应检测到低至百万分之一（
Toxic gases such as NO2 and irritant gases such as NH3 are two of the harshest aspects that trigger the exacerbation of the respiratory system for asthma patients. Monitoring and recording high-risk gases are very important for tracking disease and alerting patients because humans can be exposed to a vulnerable environment with inconspicuous gases. Current detectors suffer from lack of portability and cannot provide daily real-time detection. This work develops a light, inexpensive epidermal gas sensor based on ultralarge MoSe2 nanosheets. MoSe2 nanosheets are obtained using a gold-assisted exfoliation method and the electrical and optical properties of the film are characterized. A high-performance gas sensor for NO2 and NH3, which can be integrated onto human skin, is fabricated and shows great stability with up to 30% tensile strain. In particular, the device is able to detect down to 1 part per million with fast response (