Giant Goos-Hänchen Shifts in Au-ITO-TMDCs-Graphene Heterostructure and Its Potential for High Performance Sensor

Han, Lei; Pan, Jianxing; Wu, Cuiming; Li, Keliang; Ding, Huafeng; Ji, Qizheng; Yang, Ming; Wang, Jin; Zhang, Huijie; Huang, Tianye

doi:10.3390/s20041028

Cited by 26 publications

(11 citation statements)

References 52 publications

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“…However, when graphene and MoS 2 were added to the Au film of SPR sensor, the GH shift increased to 235.8λ for reference [36], and the highest sensitivity was obtained as 5.545 × 10 5 λ/RIU. In reference [37], when the ITO and MoSe 2 replaced MoS 2 , the GH shift increased to 801.7λ, and the maximum sensitivity was 8.02 × 10 5 λ/RIU. In this work, we use BlueP/TMDCs instead of TMDCs, and change metal into Ag, so as to construct the SPR sensor with Ag-ITO-BlueP/WS 2 -graphene hybrid structure.…”

Section: Resultsmentioning

confidence: 99%

“…By optimizing the thickness and layers number of the Au-MoS 2 -graphene hybrid, You et al gained the highest GH shift of 235.8λ [36]. Through the optimization and comparative analysis of the Au-ITO-TMDCs-graphene hybrid structure, Han et al obtained the highest GH shift of 801.7λ with MoSe 2 monolayer and graphene bilayer [37]. Zhu et al discovered another promising 2D material, Blue phosphorene (BlueP) [38].…”

Section: Introductionmentioning

confidence: 99%

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High-Sensitivity Goos-Hänchen Shifts Sensor Based on BlueP-TMDCs-Graphene Heterostructure

Han

Pan

et al. 2020

Sensors

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Surface plasmon resonance (SPR) with two-dimensional (2D) materials is proposed to enhance the sensitivity of sensors. A novel Goos–Hänchen (GH) shift sensing scheme based on blue phosphorene (BlueP)/transition metal dichalogenides (TMDCs) and graphene structure is proposed. The significantly enhanced GH shift is obtained by optimizing the layers of BlueP/TMDCs and graphene. The maximum GH shift of the hybrid structure of Ag-Indium tin oxide (ITO)-BlueP/WS2–graphene is −2361λ with BlueP/WS2 four layers and a graphene monolayer. Furthermore, the GH shift can be positive or negative depending on the layer number of BlueP/TMDCs and graphene. For sensing performance, the highest sensitivity of 2.767 × 107λ/RIU is realized, which is 5152.7 times higher than the traditional Ag-SPR structure, 2470.5 times of Ag-ITO, 2159.2 times of Ag-ITO-BlueP/WS2, and 688.9 times of Ag-ITO–graphene. Therefore, such configuration with GH shift can be used in various chemical, biomedical and optical sensing fields.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-Sensitivity Goos-Hänchen Shifts Sensor Based on BlueP-TMDCs-Graphene Heterostructure

Han

Pan

et al. 2020

Sensors

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“…The number of layers is restricted to five, so one can ignore the interaction between layers. 32 A similar trend holds when the top and bottom situations are interchanged. Figure 6 shows the results in the visible range of wavelength when the heterostructure is symmetric with an N-layer TMD.…”

Section: Spatial Shiftmentioning

confidence: 67%

“…30 Recently, some articles have been devoted to the study of the GH shift in architectures containing graphene and TMD. [31][32][33][34] Most of these studies rely on plasmonic or bulky structures to obtain large GH shifts. Lin et al 24 investigated a planar symmetric multilayer structure composed of optical glass BF11, silicon dioxide (with a thickness of 675 nm), graphene, and boron nitride (with a thickness of 5 nm) at visible wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Sandwich heterostructure of transition metal dichalcogenide/graphene as tunable lateral reflection shifter

Zoghi

2023

J. Nanophoton.

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.The advent of nanotechnology has led to the inevitable need for miniaturization in optoelectronic devices. To achieve this goal, materials with low thickness, conductivity, and transparency, as well as a larger active area, must be developed. Experiments have proven that the opto-electrical properties of transition metal dichalcogenides (TMD)/graphene combinations are highly tunable. On the other hand, a notable feature of light when reflecting from an interface is its spatial and angular displacements. The “lateral shift” in the incident plane, referred to as the Goos–Hanchen (GH) shift, has garnered significant interest among researchers owing to its extensive range of applications. In our work, an atomically thin TMD/graphene/TMD sandwich heterostructure is proposed, and its spatial and angular GH shifts are investigated. The theoretical analysis includes various TMD materials such as MoSe2, MoS2, WSe2, and WS2. A detailed study of the effects of wavelength, polarization, incident angle, and number of TMD layers in symmetric and asymmetric structures suggests that this hybrid can serve as an ultrathin broadband tunable sensor in optical devices.

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“…The GH shift of TMDCs, and direct bandgap semiconductor surfaces is studied by Das [54]. Han et.al theoretically proved that the 801.7λ of GH shift of multi-layer heterostructures [55]. Therefore, 2D material TMDCs can improve the GH shift of SPR sensors.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Goos-Hänchen Shift of SPR Sensor with TMDCs and Doped PANI/Chitosan Composites for Heavy Metal Ions Detection in Aquatic Environment

Jin

Liu

et al. 2023

Plasmonics

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A novel surface plasmon resonance (SPR) sensor with transition metal dichalcogenides (TMDCs) and polyaniline (PANI)/chitosan composite for detection of heavy metal ions in an aquatic environment is proposed and analyzed. The Goos-Hänchen (GH) shift is employed as an important method for analyzing the performance of the SPR sensor. It is theoretically shown that the GH shift can be signi cantly enhanced in the SPR structure silver (Ag) coated with a TMDCs and PANI/CS heterostructure. When the incident light wavelength is 632.8nm, the refractive index of Cu 2+ ion is 1.3516. Through comparison and optimization analysis, when the thickness of MoSe 2 and PANI/chitosan is monolayer and 123 nm, respectively, the maximum GH shift is -2067λ at resonance angle 69.19°. When different Cu 2+ ion concentrations are added into the sample layer, the refractive index of the sample and GH shift of the SPR sensor will change. The maximum sensitivity of 2.425×10 6 λ/RIU is obtained by Ag-WSe 2 -PANI/chitosan structure, which is 463.42 times higher than the traditional SPR Ag lm and 112.84 times higher than Ag-PANI/chitosan structure. The discovery of the Kretschmann structure SPR sensor with 2D material provides a new development direction for the detection of heavy metal ions in an aquatic environment.

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Giant Goos-Hänchen Shifts in Au-ITO-TMDCs-Graphene Heterostructure and Its Potential for High Performance Sensor

Cited by 26 publications

References 52 publications

High-Sensitivity Goos-Hänchen Shifts Sensor Based on BlueP-TMDCs-Graphene Heterostructure

High-Sensitivity Goos-Hänchen Shifts Sensor Based on BlueP-TMDCs-Graphene Heterostructure

Sandwich heterostructure of transition metal dichalcogenide/graphene as tunable lateral reflection shifter

Enhanced Goos-Hänchen Shift of SPR Sensor with TMDCs and Doped PANI/Chitosan Composites for Heavy Metal Ions Detection in Aquatic Environment

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