The novel surface plasmon resonance (SPR) sensor based on hybrid structure of Ag-indium tin oxide (ITO)-blue phosphorene (BlueP)/transition metal dichalcogenides (TMDCs)-graphene is presented. The BlueP/TMDCs heterostructure works as an interacting layer with the analyte for the enhancement of the of the sensor’s sensitivity. For angular sensitivity, when the BlueP/WS₂ and graphene are both monolayer, the highest angular sensitivity with 348.8°/RIU is obtained. The maximum angular sensitivity of our proposed SPR sensor is about 2.83 times of the conventional sensor. For phase sensitivity, when the BlueP/WSe₂ is monolayer and graphene is bilayer, the highest phase sensitivity with 3.603 × 10⁶ deg/RIU is obtained. The highest phase sensitivity of our proposed SPR sensor is about 2.78 times of the Ag-ITO-graphene structure and 4.16 times of the Ag-ITO structure. The SPR sensor has the advantages of high sensitivity, repeatability, and reusability, so it has a good prospect application for food safety detection, biological engineering, medical diagnosis, and biochemical detection.

中文翻译：

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基于Ag-ITO-BlueP / TMDCs-石墨烯异质结构的高灵敏度SPR传感器

提出了一种基于Ag-铟锡氧化物（ITO）-蓝色磷烯（BlueP）/过渡金属二卤化金属（TMDCs）-石墨烯的混合结构的新型表面等离子体共振（SPR）传感器。BlueP / TMDCs异质结构充当与分析物的相互作用层，以增强传感器的灵敏度。对于角度灵敏度，当BlueP / WS ₂和石墨烯均为单层时，可获得348.8°/ RIU的最高角度灵敏度。我们提出的SPR传感器的最大角灵敏度约为传统传感器的2.83倍。对于相敏度，当BlueP / WSe ₂为单层且石墨烯为双层时，最高相敏度为3.603×10 ⁶ deg / RIU。我们提出的SPR传感器的最高相位灵敏度约为Ag-ITO-石墨烯结构的2.78倍和Ag-ITO结构的4.16倍。SPR传感器具有高灵敏度，可重复性和可重复使用性的优点，因此在食品安全检测，生物工程，医学诊断和生化检测中具有良好的应用前景。