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

Abstract 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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Sensitive detection using heterostructure of black phosphorus, transition metal di-chalcogenides and MXene in SPR sensor

Applied Physics A ◽

10.1007/s00339-020-03998-1 ◽

2020 ◽

Vol 126 (10) ◽

Author(s):

Sarika Pal ◽

Alka Verma ◽

Y. K. Prajapati ◽

J. P. Saini

Keyword(s):

Transition Metal ◽

Black Phosphorus ◽

Sensitive Detection ◽

Spr Sensor

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Polyamic Acid Langmuir-Blodgett (LB) Films Containing A Stable Second-Order NLO Chromophore

MRS Proceedings ◽

10.1557/proc-413-281 ◽

1995 ◽

Vol 413 ◽

Author(s):

D. W. Cheong ◽

J. -I Chen ◽

J. Kumar ◽

S. K. Tripathy

Keyword(s):

Nonlinear Coefficient ◽

Polarized Light ◽

Second Order ◽

Polyimide Films ◽

Polyamic Acid ◽

Lb Films ◽

Langmuir Blodgett ◽

Number Of Layers ◽

Absorption Correction ◽

Nlo Chromophores

ABSTRACTNonlinear optical (NLO) LB films of polyamic acid containing a stable NLO dye were prepared and imidized either chemically or thermally. The optical properties and molecular orientation of these LB films were studied. From the absorption spectra, we infer that the derivative of the pnitroazobenzene chromophore covalently attatched to polyamic acid did not show significant aggregation. Quadratic dependence of SHG on the number of layers in polyamic acid films indicated the noncentrosymmetric organization of polar NLO chromophores. A second-order nonlinear coefficient (d33) of 23.4 pm/V was observed at 1064 nm after absorption correction. In polyimide films, SH intensity was dramatically reduced due to the collapse of the layered structure upon imidization process. In-plane isotropy of the LB films of polyamic acid and polyimide were lost upon irradiation of polarized light.

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Manipulating polarized light with a planar slab of black phosphorus

Journal of Physics Communications ◽

10.1088/2399-6528/aa90c8 ◽

2017 ◽

Vol 1 (4) ◽

pp. 045003 ◽

Cited By ~ 14

Author(s):

Constantinos A Valagiannopoulos ◽

Marios Mattheakis ◽

Sharmila N Shirodkar ◽

Efthimios Kaxiras

Keyword(s):

Polarized Light ◽

Black Phosphorus

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Zinc Sulfide, Silicon Dioxide, and Black Phosphorus Based Ultra-Sensitive Surface Plasmon Biosensor

10.21203/rs.3.rs-964142/v1 ◽

2021 ◽

Author(s):

Bhishma Karki ◽

Youssef Trabelsi ◽

Arun Uniyal ◽

Amrindra Pal

Keyword(s):

Silicon Dioxide ◽

Quality Factor ◽

Zinc Sulfide ◽

Metal Layer ◽

Polarized Light ◽

Optical Biosensor ◽

Research Area ◽

Black Phosphorus ◽

Detection Accuracy ◽

Hybrid Configuration

Abstract The optical biosensor is the emerging research area in the field of bio-photonics. The black phosphorus zinc sulfide-based hybrid configuration is suitable for implementing and analyzing ultrasensitive biosensors. Ag/Zinc sulfide/silicon dioxide/black phosphorus-based biosensor has been implemented in the proposed work using the modified Kretschmann configuration. The sensitivity improvement of the designed SPR sensor is analyzed in the different arrangements of the layers. The thickness of the layers of all the materials has been optimized. The thickness of the Ag metal layer is optimized and taken as 45 nm. The sensitivity and quality factor measured here is as high as \(664.6^\circ /\text{R}\text{I}\text{U}\) and 200 at 1.37 refractive index—the P-polarized light source of \(633\text{n}\text{m}\) wavelength. The proposed biosensor confirms tremendous growth in terms of sensitivity, detection accuracy, and quality factor compared with the traditional SPR sensors. Zinc sulfide has multiple applications in the sensing fields, like sensors based on UV rays, lasers, and gas.

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Charge-transport anisotropy in black phosphorus: critical dependence on the number of layers

Physical Chemistry Chemical Physics ◽

10.1039/c6cp02129h ◽

2016 ◽

Vol 18 (24) ◽

pp. 16345-16352 ◽

Cited By ~ 8

Author(s):

Swastika Banerjee ◽

Swapan K. Pati

Keyword(s):

Charge Transport ◽

Carrier Transport ◽

2D Materials ◽

Black Phosphorus ◽

Relaxation Dynamics ◽

Scattering Process ◽

Number Of Layers

Tri-layer black phosphorus exhibits unique carrier-transport features. Two descriptors have been proposed to analyze the scattering process of electrons and holes and their recombination as well as relaxation dynamics in black phosphorus. This approach is general enough to be applied for the assessment of transport-anisotropy in any 2D (or quasi-2D) materials as well as the critical dependence on the number of layers.

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Sensitivity Enhancement of SPR Sensor with the Black Phosphorus and Graphene with Bi-layer of Gold for Chemical Sensing

Plasmonics ◽

10.1007/s11468-020-01315-3 ◽

2021 ◽

Author(s):

Yadvendra Singh ◽

Mohan Kumar Paswan ◽

Sanjeev Kumar Raghuwanshi

Keyword(s):

Chemical Sensing ◽

Sensitivity Enhancement ◽

Black Phosphorus ◽

Spr Sensor

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

10.21203/rs.3.rs-518410/v1 ◽

2021 ◽

Author(s):

prem kumar ◽

Rajeev Kumar ◽

O. K. Harsh ◽

Vikram Singh

Keyword(s):

Visible Region ◽

Chemical Properties ◽

Hybrid Structure ◽

Black Phosphorus ◽

Silver Layer ◽

Limited Attention ◽

Thickness Variation ◽

Spr Sensor ◽

Sensing Applications ◽

Bimetallic Layer

Abstract 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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