Ti2C MXene-based arc-shaped fiber SPR sensor for refractive index sensing

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-04-24 DOI:10.1016/j.yofte.2025.104249

Maryam Jasmine Mohd Makhfuz , Norazriena Yusoff , Harith Ahmad

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Abstract

In this paper, we investigated the surface plasmon resonance (SPR) effects of a gold (Au)-coated arc-shaped fiber sensing probe layered with titanium carbide (Ti₂C) at different concentrations. The Ti₂C MXene was prepared through in situ selective etching of the MAX phase precursor, titanium aluminum carbide (Ti₂AlC). The arc-shaped fiber sensing probe was fabricated using a wheel polishing technique with a loss of approximately 2.5 dB. A 50 nm gold layer was deposited on the sensing surface using the e-beam deposition technique, followed by the coating of Ti₂C MXene via the dip coating approach. To evaluate the performance improvement of the sensors, various refractive indices (RI) of analytes were tested. The study revealed that compared to the Au-coated arc-shaped fiber sensing device, the sensitivity of the 10 mg/mL concentration of Ti₂C coated on Au-coated arc-shaped fiber increased by 45.51 %. For the 15 mg/mL concentration, the sensitivity boost was approximately 128.01 %, while the 20 mg/mL concentration yielded a sensitivity improvement of about 54.02 %. The performance analysis indicates that the optimal concentration of Ti₂C coating is 15 mg/mL. The Ti₂C/Au-coated arc-shaped fiber sensing probe offers distinct advantages, enhancing sensitivity and achieving a significantly higher figure of merit (FOM) compared to the Au-coated arc-shaped fiber sensing probe. This study highlights the significant potential of Ti₂C/Au-coated arc-shaped fiber sensors for practical sensing applications.

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用于折射率传感的Ti2C mxena型弧形光纤SPR传感器

本文研究了不同浓度碳化钛（Ti2C）层敷金（Au）的弧形光纤传感探针的表面等离子体共振（SPR）效应。通过对MAX相前驱体钛铝碳化物（Ti2AlC）的原位选择性蚀刻制备了Ti2C MXene。采用滚轮抛光技术制备了电弧型光纤传感探头，损耗约为2.5 dB。采用电子束沉积技术在传感表面沉积了一层50 nm的金层，然后采用浸镀方法涂覆Ti2C MXene。为了评估传感器的性能改进，对分析物的各种折射率（RI）进行了测试。研究表明，与镀金弧形光纤传感装置相比，镀金弧形光纤上浓度为10 mg/mL的Ti2C的灵敏度提高了45.51%。当浓度为15 mg/mL时，灵敏度提高约128.01%，而浓度为20 mg/mL时灵敏度提高约54.02%。性能分析表明，Ti2C涂层的最佳浓度为15 mg/mL。Ti2C/ au涂层弧形光纤传感探头具有明显的优势，与au涂层弧形光纤传感探头相比，它提高了灵敏度，并实现了显着更高的性能值（FOM）。这项研究强调了Ti2C/ au涂层弧形光纤传感器在实际传感应用中的巨大潜力。

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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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.