MMF-SMF-MMF optic surface plasmon resonance sensor based on hexagonal plate-like <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si15.svg" display="inline" id="d1e267"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Co(OH)</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mo>/</mml:mo><mml:msub><mml:mrow><mml:mi mathvariant="normal">TiO</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mo>/</mml:mo><mml:mi mathvariant="normal">Au</

Wu, Haoyu; Xu, Yanpei; Sun, Meng; Song, Yutong; Wang, Qi

doi:10.1016/j.measurement.2023.114007

Measurement

2024

DOI: 10.1016/j.measurement.2023.114007

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MMF-SMF-MMF optic surface plasmon resonance sensor based on hexagonal plate-like Co(OH)2/TiO2/Au

Haoyu Wu,

Yanpei Xu,

Meng Sun

et al.

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Surface Plasmon Resonance Sensor Based on Fe2O3/Au for Alcohol Concentration Detection

Wang,

Xu,

Song

et al. 2024

Sensors

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Hematite (α-Fe2O3) is widely used in sensor sensitization due to its excellent optical properties. In this study, we present a sensitivity-enhanced surface plasmon resonance alcohol sensor based on Fe2O3/Au. We describe the fabrication process of the sensor and characterize its structure. We conduct performance testing on sensors coated multiple times and use solutions with the same gradient of refractive indices as the sensing medium. Within the refractive index range of 1.3335–1.3635, the sensor that was coated twice achieved the highest sensitivity, reaching 2933.2 nm/RIU. This represents a 30.26% enhancement in sensitivity compared to a sensor with a pure gold monolayer film structure. Additionally, we demonstrated the application of this sensor in alcohol concentration detection by testing the alcohol content of common beverages, showing excellent agreement with theoretical values and highlighting the sensor’s potential in food testing.

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Surface Plasmon Resonance Sensor Based on Fe2O3/Au for Alcohol Concentration Detection

Wang,

Xu,

Song

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

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MMF-SMF-MMF optic surface plasmon resonance sensor based on hexagonal plate-like Co(OH)2/TiO2/Au

Cited by 1 publication

References 48 publications

Surface Plasmon Resonance Sensor Based on Fe2O3/Au for Alcohol Concentration Detection

Surface Plasmon Resonance Sensor Based on Fe2O3/Au for Alcohol Concentration Detection

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