Improved the quality factor and sensitivity of a surface plasmon resonance sensor with transition metal dichalcogenide 2D nanomaterials

Alagdar, Mohamed; Yousif, Bedir; Areed, Nehal F.; Elzalabani, Mahmoud

doi:10.1007/s11051-020-04872-0

Cited by 41 publications

(12 citation statements)

References 42 publications

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“…Fresnel's equations. The interface matrix will be considered as M which can link the electric field of the layer i to the layer 1 i  [25]: cos ( ) sin ( ) / sin ( ) cos ( )…”

Section: Methodsmentioning

confidence: 99%

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Design of High-Sensitivity Surface Plasmon Resonance Sensor Based on Nanostructured Thin Films for Effective Detection of DNA Hybridization

Ghayoor

Zangenehzadeh

Keshavarz

2022

Preprint

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With the increasing ability to control infectious diseases in developed countries, there has come the realization that genetic diseases are a major cause of disability, death, and human tragedy. Recently, Coronavirus as an epidemic, has spread worldwide and the ability to identify low concentrations and the mutations of the virus can effectively reduce the spread of the disease. In this paper, A surface plasmon resonance sensor based on nanostructured thin films and graphene as a 2D material has been designed with high sensitivity and accuracy to identify DNAbased infectious diseases such as SARS-CoV-2. The effects of different structural factors, including nanolayers thickness on the sensor’s performance are assessed through the transfer matrix method. The results demonstrated that the sensor with the Kretschmann configuration has ultra-high sensitivity (192.19 deg/RIU) and a high figure of merit (634.68 RIU -1 ).

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“…Fresnel's equations. The interface matrix will be considered as M which can link the electric field of the layer i to the layer 1 i  [25]: cos ( ) sin ( ) / sin ( ) cos ( )…”

Section: Methodsmentioning

confidence: 99%

“…The total reflection for the p-polarized (TM) incident light wave (r p ) can be finally obtained from the elements of the matrix U as [25]:…”

Section: Methodsmentioning

confidence: 99%

Design of High-Sensitivity Surface Plasmon Resonance Sensor Based on Nanostructured Thin Films for Effective Detection of DNA Hybridization

Ghayoor

Zangenehzadeh

Keshavarz

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Here, the transfer matrix and Fresnel's equations investigate the incident light propagation in the sensor layers. The interface matrix will be considered as M which can link the electric field of the layer i to the layer i + 1 [30]:…”

Section: Methodsmentioning

confidence: 99%

“…The total reflection for the p-polarized (TM) incident light wave (r p ) can be finally obtained from the elements of the matrix U as follows [30]:…”

Section: Methodsmentioning

confidence: 99%

Design of High-Sensitivity Surface Plasmon Resonance Sensor Based on Nanostructured Thin Films for Effective Detection of DNA Hybridization

2022

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As developed countries' ability to control infectious diseases increases, it has become clear that genetic diseases are a major cause of disability, death, and human tragedy. Coronavirus has recently spread throughout the world, and the capacity to detect low concentrations and virus changes can help to prevent the sickness from spreading further. In this paper, a surface plasmon resonance sensor based on nanostructured thin films and graphene as a 2D material has been designed with high sensitivity and accuracy to identify DNA-based infectious diseases such as SARS-CoV-2. The transfer matrix method assesses the effects of different structural factors, including nanolayer thickness on the sensor's performance. The results demonstrated that the sensor with the Kretschmann configuration has ultra-high sensitivity (192.19 deg/RIU) and a high figure of merit (634.68 RIU −1 ).

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“…At the optimum thickness of Ni (1 nm), the molecular absorption of light increases with minimum reflectance. The Ni layer is also used as a protective layer, which helps to raise the sensitivity of the SPR sensor [41]. Figure 8 shows a graph demonstrating the fluctuations in Al 2 O 3 and Ni thickness and the varying sensitivities at different thicknesses.…”

Section: The Impact Of the Refractive Index On The Reflectance Curves...mentioning

confidence: 99%

Numerical Study to Enhance the Sensitivity of a Surface Plasmon Resonance Sensor with BlueP/WS2-Covered Al2O3-Nickel Nanofilms

et al. 2022

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In the traditional surface plasmon resonance sensor, the sensitivity is calculated by the usage of angular interrogation. The proposed surface plasmon resonance (SPR) sensor uses a diamagnetic material (Al2O3), nickel (Ni), and two-dimensional (2D) BlueP/WS2 (blue phosphorous-tungsten di-sulfide). The Al2O3 sheet is sandwiched between silver (Ag) and nickel (Ni) films in the Kretschmann configuration. A mathematical simulation is performed to improve the sensitivity of an SPR sensor in the visible region at a frequency of 633 nm. The simulation results show that an upgraded sensitivity of 332°/RIU is achieved for the metallic arrangement consisting of 17 nm of Al2O3 and 4 nm of Ni in thickness for analyte refractive indices ranging from 1.330 to 1.335. The thickness variation of the layers plays a curial role in enhancing the performance of the SPR sensor. The thickness variation of the proposed configuration containing 20 nm of Al2O3 and 1 nm of Ni with a monolayer of 2D material BlueP/WS2 enhances the sensitivity to as high as 374°/RIU. Furthermore, it is found that the sensitivity can be altered and managed by means of altering the film portions of Ni and Al2O3

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Improved the quality factor and sensitivity of a surface plasmon resonance sensor with transition metal dichalcogenide 2D nanomaterials

Cited by 41 publications

References 42 publications

Design of High-Sensitivity Surface Plasmon Resonance Sensor Based on Nanostructured Thin Films for Effective Detection of DNA Hybridization

Design of High-Sensitivity Surface Plasmon Resonance Sensor Based on Nanostructured Thin Films for Effective Detection of DNA Hybridization

Design of High-Sensitivity Surface Plasmon Resonance Sensor Based on Nanostructured Thin Films for Effective Detection of DNA Hybridization

Numerical Study to Enhance the Sensitivity of a Surface Plasmon Resonance Sensor with BlueP/WS2-Covered Al2O3-Nickel Nanofilms

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