Liao Jianfei, Han Lei, Xu Chaoyu
Appl Opt. 2021 Jun 10;60(17):5161-5168. doi: 10.1364/AO.425903.
A surface plasmon resonance (SPR) sensor based on blue phosphorus (BlueP)/transition metal dichalcogenides (TMDCs) of two-dimensional (2D) materials is proposed to increase the performance. In this sensor, BlueP/TMDCs are coated on indium tin oxide (ITO) and different metals (Au/Ag/Cu) to improve the sensitivity. By optimizing structural parameters, with the / monolayer and Au thin film, the angular sensitivity can reach as high as 226.0°/RIU. The phase sensitivity also can be as high as 3.6001×10/ with / 4 layers, 228 nm ITO, and 25 nm Au thin film, which is 6.77 times that of the Au-ITO structure and 54.40 times that of the traditional SPR of Au thin film. The SPR sensor has potential applications in disease diagnosis, drug development, gene sequencing and treatment, environmental monitoring, food safety testing, doping testing, and other fields.
为了提高性能，提出了一种基于二维（2D）材料的蓝磷（BlueP）/过渡金属二卤化物（TMDCs）的表面等离子体共振（SPR）传感器。在该传感器中，将BlueP/TMDCs涂覆在氧化铟锡（ITO）和不同金属（金/银/铜）上以提高灵敏度。通过优化结构参数，对于单层和金薄膜，角度灵敏度可高达226.0°/RIU。对于4层、228nm的ITO和25nm的金薄膜，相位灵敏度也可高达3.6001×10/，这是金-ITO结构的6.77倍，是传统金薄膜SPR的54.40倍。该SPR传感器在疾病诊断、药物开发、基因测序与治疗、环境监测、食品安全检测、兴奋剂检测等领域具有潜在应用。
