State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
Small. 2019 Sep;15(38):e1902801. doi: 10.1002/smll.201902801. Epub 2019 Aug 1.
The development of noncontact humidity sensors with high sensitivity, rapid response, and a facile fabrication process is urgently desired for advanced noncontact human-machine interaction (HMI) applications. Here, a flexible and transparent humidity sensor based on MoO nanosheets is developed with a low-cost and easily manufactured process. The designed humidity sensor exhibits ultrahigh sensitivity, fast response, great stability, and high selectivity, exceeding the state-of-the-art humidity sensors. Furthermore, a wearable moisture analysis system is assembled for real-time monitoring of ambient humidity and human breathing states. Benefiting from the sensitive and rapid response to fingertip humidity, the sensors are successfully applied to both a smart noncontact multistage switch and a novel flexible transparent noncontact screen for smart mobile devices, demonstrating the potential of the MoO nanosheets-based humidity sensors in future HMI systems.
对于先进的非接触人机交互 (HMI) 应用，人们迫切需要开发具有高灵敏度、快速响应和易于制造工艺的非接触式湿度传感器。在这里，我们开发了一种基于 MoO 纳米片的灵活透明湿度传感器，该传感器具有低成本和易于制造的工艺。所设计的湿度传感器具有超高的灵敏度、快速的响应、出色的稳定性和高选择性，超过了最先进的湿度传感器。此外，我们还组装了一个可穿戴的水分分析系统，用于实时监测环境湿度和人体呼吸状态。得益于对指尖湿度的敏感和快速响应，这些传感器成功应用于智能非接触式多阶段开关和新型灵活透明非接触式智能移动设备屏幕，这表明基于 MoO 纳米片的湿度传感器在未来 HMI 系统中有很大的应用潜力。
