Enhanced Goos-Hänchen Shift of SPR Sensor with TMDCs and Doped PANI/Chitosan Composites for Heavy Metal Ions Detection in Aquatic Environment
نویسندگان
چکیده
A novel surface plasmon resonance (SPR) sensor with transition metal dichalcogenides (TMDCs) and polyaniline (PANI)/chitosan composite for detection of heavy ions in an aquatic environment is proposed analyzed. Goos-Hänchen (GH) shift sensing scheme based on TMDCs PANI/chitosan structure proposed. The theory shows that the GH can be significantly enhanced SPR silver (Ag), TMDCs, heterostructures. refractive index Cu2+ ion 1.3516, maximum hybrid Ag-MoSe2-PANI/chitosan is−2067 λ at angle 69.19° MoSe2 4 layers 123 nm. When different concentrations are added into sample layer, will change. sensitivity 2.425 × 106 λ/RIU obtained by Ag-WSe2-PANI/chitosan structure, which 463.42 times higher than traditional Ag film 112.84 Ag-PANI/chitosan structure. Therefore, configuration provides a new development direction environment.
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ژورنال
عنوان ژورنال: Plasmonics
سال: 2023
ISSN: ['1557-1955', '1557-1963']
DOI: https://doi.org/10.1007/s11468-023-01837-6