用于呼吸监测的 PETA 聚合物/石墨烯复合膜光学微腔相对湿度传感器

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-09-18 DOI:10.1021/acsaelm.4c01323

Senpeng Zhang, Bo Dong, Zhuojun Wang, Zongyu Chen, Tianyu Wei, Junxiong Zheng, Pofeng Lin

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引用次数: 0

摘要

本文介绍了一种基于季戊四醇四丙烯酸酯聚合物和氧化石墨烯（PETA/GO）复合薄膜以及光学微腔的相对湿度（RH）传感器。PETA/GO 复合薄膜既是内反射面，又是光学微腔的湿敏薄膜，可有效增强光与环境湿度变化之间的相互作用，提高传感器的灵敏度和响应速度。复合薄膜传感器可用于高性能人体呼吸监测。实验结果表明，在 14.5%-59.4% 的相对湿度范围内，该传感器的湿度灵敏度为 -288.2 pm/%RH，响应时间和恢复时间分别为 1.84 秒和 1.85 秒。该传感器具有结构紧凑、灵敏度高、重复性和稳定性好、响应时间快等优点。因此，它有望应用于与相对湿度测量和监测相关的医疗、生物和工业领域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

PETA Polymer/Graphene Composite Film-Enabled Optical Microcavity Relative Humidity Sensor for Respiratory Monitoring

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PETA Polymer/Graphene Composite Film-Enabled Optical Microcavity Relative Humidity Sensor for Respiratory Monitoring

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.

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

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.