ito - si -石墨烯混合纳米结构表面等离子体共振传感器的设计与性能分析

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2025-04-21 DOI:10.1016/j.diamond.2025.112357

Manish Jangid , Vijay Janyani

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引用次数: 0

摘要

本文演示了一种用于气体检测的表面等离子体共振（SPR）传感器的建模和设计，该传感器利用带有石墨烯层的ITO-Ag-Si混合纳米结构。通过基于传递矩阵法（TMM）多层建模的克雷茨曼构形的角度询问来研究所设计结构的性能。通过对谐振现象的综合分析，包括结构参数的变化，确定了最大灵敏度和最小信号损失的最优值。所提出的传感器具有成本效益，并且在633 nm的源波长下，对折射率（RI）为1.00至1.03的气体分析物具有220o/RIU的高灵敏度。这种灵敏度是传统的基于spr的传感器在可见光谱中工作的2.15倍。使用几个关键指标分析了所提出的SPR传感器的性能：检测精度（DA），灵敏度，性能值（FoM）和半最大全宽度（FWHM）。分析结果表明，与以往的研究报告相比，该传感器具有出色的气体传感能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Design and performance analysis of an ITO-Si-graphene hybrid nanostructure-based surface plasmon resonance sensor for enhanced gas detection

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Design and performance analysis of an ITO-Si-graphene hybrid nanostructure-based surface plasmon resonance sensor for enhanced gas detection

The paper demonstrates the modeling and design of a surface plasmon resonance (SPR) sensor for gas detection, utilizing an ITO-Ag-Si hybrid nanostructure with a graphene layer. The performance of the designed structure is investigated through an angular interrogation of the Kretschmann configuration, which is based on multilayer modeling of the transfer matrix method (TMM). Through a comprehensive analysis of the resonance phenomena, including variations in structural parameters, the optimal values that maximize the sensitivity while minimizing signal loss are identified. The proposed sensor offers cost-effectiveness and exhibits a high sensitivity of 220^o/RIU for gas analytes with refractive indices (RI) ranging from 1.00 to 1.03 at a source wave length of 633 nm. This sensitivity is 2.15 times greater than that of conventional SPR-based sensors operating in the visible spectrum. The performance of the proposed SPR sensor is analyzed using several key metrics: detection accuracy (DA), sensitivity, figure of merit (FoM), and full width at half maximum (FWHM). The analytical results show that this sensor demonstrates exceptional gas-sensing capabilities compared with those reported in previous studies.

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.