基于 PDMS 和 GO 薄膜的高灵敏度锥形光纤相对湿度传感器

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2024-02-12 DOI:10.1364/ome.519037

Heer Yang, Yuanjun Li, Cai Sun, Xuepeng Pan, Shanren Liu, Bo Wang, Mengmeng Gao, Qi Guo, and Yongsen Yu

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引用次数: 0

摘要

本文提出并演示了一种基于聚二甲基硅氧烷（PDMS）和氧化石墨烯（GO）薄膜涂层的新型锥形光纤相对湿度（RH）传感器。锥形光纤是用锥形机制造的单模光纤。采用氢氧化焰烧结技术在光纤表面涂覆 PDMS 薄膜，同时采用物理沉积技术沉积 GO 薄膜。这种结构可以通过较小范围的渐变过程实现较强的干涉效果。在相对湿度测量实验中，在 35% 至 90% 的相对湿度范围内，传感器的湿度灵敏度高达 0.371 dB/%RH。实验研究了不同数量的 PDMS 涂层对灵敏度的影响。随着 PDMS 涂层数量的增加，传感器的相对湿度灵敏度也随之增加，当涂层达到 10 层 PDMS 膜时，灵敏度达到最高。该传感器具有较高的相对湿度灵敏度、良好的稳定性和机械强度，在吸湿和解吸方面也表现出色。这些优点使该传感器适用于各种湿度传感应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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High-sensitivity tapered fiber relative humidity sensor based on PDMS and GO films

A new tapered fiber relative humidity (RH) sensor based on polydimethylsiloxane (PDMS) and graphene oxide (GO) film coatings is proposed and demonstrated. Tapered fiber is fabricated in single mode fiber by the tapering machine. The PDMS film is coated on the surface of the fiber using the hydroxide flame sintering technique, while the GO film is deposited using the physical deposition technique. This structure can achieve strong interference effect by the smaller range of tapering process. In the RH measurement experiment, the humidity sensitivity of the sensor is measured to be as high as 0.371 dB/%RH within the RH range of 35% to 90%. The experiment investigates the impact of different numbers of PDMS coating on sensitivity. As the number of PDMS coatings increases, the RH sensitivity of the sensor also increases and reaches the highest sensitivity when coated with 10 layers of PDMS film. The sensor has high sensitivity to RH, good stability and mechanical strength, which also shows great performance in both moisture absorption and desorption. These advantages make the sensor suitable for the wide range of humidity sensing applications.

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.