Senpeng Zhang, Bo Dong, Zhuojun Wang, Zongyu Chen, Tianyu Wei, Junxiong Zheng, Pofeng Lin
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引用次数: 0
Abstract
A relative humidity (RH) sensor based on pentaerythritol tetraacrylate polymer and graphene oxide (PETA/GO) composite film with an optical microcavity is presented. The PETA/GO composite film serves as both an internal reflective surface and a moisture-sensitive film for the optical microcavity, which effectively enhances the interaction between light and ambient humidity changes and improves the sensitivity and response speed of the sensor. The composite film-enabled sensor can be used for high-performance human respiratory monitoring. Experimental results show that the sensor has a humidity sensitivity of −288.2 pm/%RH over an RH range of 14.5%–59.4%, with the response time and recovery time of 1.84 and 1.85 s, respectively. The sensor has the advantages of a compact structure, high sensitivity, good repeatability and stability, and fast response time. Therefore, it has potential applications in the medical, biological, and industrial fields related to RH measurement and monitoring.
期刊介绍：
ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.
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