Sensitivity enhancement of surface plasmon resonance sensor using hybrid configuration of 2D materials over bimetallic layer of Cu–Ni

AlaguVibisha, G.; Nayak, Jeeban Kumar; Maheswari, P.; Priyadharsini, N.; Nisha, A.; Jaroszewicz, Zbigniew; Rajesh, K. B.; Jha, Rajan

doi:10.1016/j.optcom.2020.125337

Cited by 66 publications

(28 citation statements)

References 66 publications

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“…1, wherein the light incident on a BK7 prism. The BK7 prism, which has a refractive index (RI) of 1.5151, is the first layer (Vibisha et al 2020). The 2 nd and 3 rd layers are Ag, Au, and Ni metal film.…”

Section: Proposed Structure Layer Configurationmentioning

confidence: 99%

“…Srivastava et al (2020), theoretically proposed an SPR sensor-based Au-MXene-WS2-Black Phosphorus with enhanced sensitivity of ~ 190.22°/RIU at a wavelength (ʎ) 633nm. Vibisha et al (2020), also theoretically discussed the use of a few TMDs material over a bimetallic layer to obtain the higher sensitivity and FWHM particularly with optimized Copper layer and Nickel layer. Wu et al (2017), design a hetero-structure (fewlayer BP and Graphene/TMDs) based SPR sensor, and demonstrated the sensitivity of ~ 279 °/RIU.…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity Enhancement of Ag-Ni Functional Bimetallic SPR Sensor Using Black Phosphorus in the Visible Region

Kumar

Harsh

et al. 2021

Preprint

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In this seminal, a highly sensitive bimetallic layer for surface plasmon resonance (SPR) sensor applications is proposed with the BK7 prism, silver–nickel (Ag–Ni) bimetallic films, and hybrid structure of black phosphorus layer under angular interrogation technique. Sensitivity, minimum reflectivity (Rmin), DA, and FoM are the criterion for the sensing applications. By tuning these parameters, the maximum sensitivity of 347°/RIU is obtained with two-dimensional (2D) black phosphorus and the optimized thickness of the Silver layer at 633nm wavelength. 2D black phosphorus (BP) has attracted immense interest from the research community because of its unique properties like high charge density, direct bandgap, and better binding to the various molecules. The noble bimetallic layer-based SPR sensors have improved the sensor performance due to their exciting properties of large optical field enhancements follow on to the strong scattering and absorption of light. Herein, the Black Phosphorus-based SPR sensor is optimized with the thickness variation of the Silver layer due to ease of synthesis, a high degree of surface functionalization, and tunable Physico-chemical properties to the various sensing-medium refractive indices ranging from 1.330 to 1.335. Although there are many analogous sensors reported, limited attention has been paid to propose one, which exhibits the higher sensitivity, better DA, and superior FoM. The increased sensitivity of bimetallic layer and 2D, Black Phosphorus-based sensor providing promising applications in biosensing.

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Section: Proposed Structure Layer Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sensitivity Enhancement of Ag-Ni Functional Bimetallic SPR Sensor Using Black Phosphorus in the Visible Region

Kumar

Harsh

et al. 2021

Preprint

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show abstract

“…It is noted thatthe usage of bimetallic film though improved the resolution of the sensor its sensitivity seems not much improved [10][11][12][13]. Apart from Au and Ag more metals have been identified for SPR sensing such as Aluminum(Al),Nickel(Ni),Copper(Cu),Platinum(Pt) and each of these metals has their own advantagesand disadvantages [14][15][16]. Recently, Platinum has been identified as a potential SPR active metal owing to its strong dependence of reflection coefficient on wavelength in the visible region of the spectrum, high reflecting property, inert, chemically stable with high melting point, and prolonged stability [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Platinum Layers Sandwiched Between Black Phosphorous and Graphene for Enhanced SPR Sensor Performance

Maheswari¹,

Santhanakumar²,

Veeran³

et al. 2021

Plasmonics

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Highly sensitivity Surface Plasmon resonance (SPR) sensor consisting of Ag-Pt bimetallic films sandwiched with 2D materials Black Phosphorus (BP) and Graphene over Pt layer in Kretschmann configuration is analyzed theoretically using the Transfer Matrix Method.Numerical results shows that upon suitable optimization of thickness of Ag-Pt and number of layers of BP & graphene, sensitivity as high as 412º/RIU can be achieved for p-polarized light of wavelength 633 nm. This performance can be tuned and controlled by changing the number of layers of BP and graphene. Further, the addition of graphene and heterostructures of black phosphorus not only improved the sensitivity of the sensor but keep the FWHM of the resonance curve much smaller than the conventional sensor utilizing Au as plasmon metal and hence improved the resolution to a significant extent. We expect that this new proposed design will be useful for medical diagnosis, biomolecular detection and chemical examination.

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“…So, this work presents a new Ti 3 C 2 T x (MXene)-based SPR biosensor configuration using bimetallic layers of Ag and Ni. Ni is chemically inactive metal, and it shows poor plasmonic properties due to high Joule losses [11,29,30]. Ni possesses remarkable magnetic and magneto optical merits useful for sensing [11,29,30].…”

Section: Introductionmentioning

confidence: 99%

“…Ni is chemically inactive metal, and it shows poor plasmonic properties due to high Joule losses [11,29,30]. Ni possesses remarkable magnetic and magneto optical merits useful for sensing [11,29,30]. On combining these ferromagnetic and noble metals provides a high sensitivity as compared to conventional SPR sensor by localizing electromagnetic field associated with plasmonic response [29,30].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Bimetallic Surface Plasmon Resonance Sensor Based on Ti3C2Tx (MXene)

Kumar

Pal

et al. 2021

Lecture Notes in Electrical Engineering

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Sensitivity enhancement of surface plasmon resonance sensor using hybrid configuration of 2D materials over bimetallic layer of Cu–Ni

Cited by 66 publications

References 66 publications

Sensitivity Enhancement of Ag-Ni Functional Bimetallic SPR Sensor Using Black Phosphorus in the Visible Region

Sensitivity Enhancement of Ag-Ni Functional Bimetallic SPR Sensor Using Black Phosphorus in the Visible Region

Platinum Layers Sandwiched Between Black Phosphorous and Graphene for Enhanced SPR Sensor Performance

Performance Evaluation of Bimetallic Surface Plasmon Resonance Sensor Based on Ti3C2Tx (MXene)

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