【作者】 王浩；

【导师】 罗云瀚；

【作者基本信息】 暨南大学 ， 光学工程（专业学位）， 2018， 硕士

【摘要】 表面等离子体共振（Surface Plasmon Resonance,SPR）方法具有响应速度快、灵敏度高、所需样品少、无需要标记和实时检测的特点,成为了光学传感研究领域的热点。而提高SPR检测灵敏度是该研究领域持续关注的目标。使用各种材料修饰SPR用于提高灵敏度的方法被不断报道出来,而基于二维材料增敏SPR传感实验工作却很少见到。本文首先介绍了表面等离子体共振的激发原理,分析了增强SPR传感器灵敏度的国内外研究现状,提出了利用二维材料增强SPR传感器性能作为本文的研究目标。论文完成了SPR传感器的制作,测试三种二维材料（二硒化钼、二硫化钼、石墨烯）的光学性能,完成了二维材料对SPR传感器的修饰,并完成修饰后的SPR传感器特性测试和结果分析与讨论。主要研究工作如下:（1）基于二硫化钼（MoS₂）纳米片粒修饰的SPR传感器研究。介绍二硫化钼纳米材料的光电特性,阐述MoS₂-SPR传感器的制作过程,完成MoS₂-SPR传感器的物构观测,最后测试了传感器的传感性能并分析讨论其结果。研究表明,通过两次沉积MoS₂纳米片的SPR传感器灵敏度最高,可达到2793.5 nm/RIU。与未修饰材料SPR传感器相比,MoS₂-SPR传感器灵敏度提高30.67%。（2）基于二硒化钼（MoSe₂）纳米片粒修饰的SPR传感器研究。介绍了二硒化钼纳米材料的光电特性,完成MoSe₂-SPR传感器的物构观测,最后测试了传感器的传感性能并分析讨论其结果。研究表明,通过两次沉积MoSe₂纳米片的SPR传感器灵敏度最高,可达2524.8nm/RIU。与未修饰材料SPR传感器相比,MoSe₂-SPR传感器灵敏度提高了36.34%。（3）基于石墨烯（Graphene）纳米片粒修饰的SPR传感器研究。介绍了石墨烯纳米材料的光电特性,完成传感器的物构观测。最后用乙二醇配置的折射率液和胎牛清蛋白溶液对传感器的传感特性进行了测试并分析讨论结果。研究表明旋涂三次石墨烯分散液SPR传感器灵敏度最高,可达2715.1nm/RIU,与未修饰材料SPR传感器相比增敏20.25%。用胎牛清蛋白生物溶液进行折射率传感测试,在石墨烯旋涂一次时候,其灵敏度最大,可达4029.0nm/RIU,比用折射率液测试旋涂三次石墨烯的SPR传感器最佳灵敏度要高出48.39%。本文的创新之处:（1）提出并使用了MoSe₂、MoS₂、Graphene这三种二维纳米材料来修饰SPR传感器。（2）实验研究了二维材料修饰的SPR传感器的折射率传感性能,并对Graphene修饰的SPR传感器做了生物实验检测。更多还原

【Abstract】 Surface Plasmon Resonance（SPR）method has become a hotspot in the field of optical sensing because of its fast response speed,high sensitivity,low sample requirement,label-free and real-time detection and Increasing the SPR detection sensitivity is a constant concern in this research field.The use of various materials to modify SPR for increasing sensitivity has been continuously reported,and experimental work based on two-dimensional material sensitization SPR sensing is rarely seen.In this paper,the excitation principle of surface plasmon resonance is introduced first,and the research status of the enhancement of the sensitivity of SPR sensor at home and abroad is analyzed.The use of two-dimensional material to enhance the performance of SPR sensor is proposed as the research object of this paper.The paper makes the fabrication of SPR sensor,tests the optical properties of three two-dimensional materials（molybdenum diselenide,molybdenum disulfide,and graphene）,modifies the modification of two-dimensional materials to the SPR sensor,and completes the modified SPR sensor properties.Experimental results analysis and discussion are presented.The main research work is as follows:（1）SPR sensors based on molybdenum disulfide（MoS₂-SPR）nanosheet modification.This paper introduces the photoelectric properties of molybdenum disulfide nanomaterials,describes the fabrication process of MoS₂-SPR sensors,and completes the material structure observation of MoS₂-SPR sensors.Finally,the sensor performance of the sensor is tested and analyzed and the results discussed.Studies have shown that the SPR sensor with two depositions of MoS₂ nanosheets has the highest sensitivity and can reach 2793.5 nm/RIU.Compared with the unmodified SPR sensor,the sensitivity of the Mo S₂-SPR sensor is increased by 30.67%.（2）Studies were based on the MoS2 nano-sheet modified SPR sensor.The photoelectric properties properties of molybdenum diselenide nanomaterials were introduced.The observation of the structure of the MoSe₂-SPR sensor was completed.Finally,the sensor’s sensing performance was tested and the results were analyzed and discussed.Studies have shown that the SPR sensor with two depositions of MoSe₂ nanosheets has the highest sensitivity of 2524.8 nm/RIU.Compared with the unmodified SPR sensor,the sensitivity of the MoSe₂-SPR sensor is increased by 36.34%.（3）SPR sensor based on graphene nanosheets modified.The optoelectronic properties of graphene nanomaterials were introduced,and the sensor structure observations were completed.Finally,the sensing characteristics of the sensor were tested with ethylene glycol configured refractive index solution and fetal bovine albumin solution,and the results were analyzed.The study shows that the spin-coated three-graphene dispersion SPR sensor has the highest sensitivity,up to 2715.1nm/RIU,and it is increased by 20.25%compared with the unmodified SPR sensor.The refractive index sensing test was carried out with the fetal bovine albumin biological solution.When the graphene was spin-coated twice,the sensitivity reached highest-4029.0 nm/RIU.Compared with the refractive index liquid,the optimum sensitivity of the three-graphene SPR sensor was higher,and its sensitivity was 48.39%.The innovation of this article:（1）MoS₂,molybdenum disulfide,and graphite are used to modify SPR sensors.（2）The refractive index sensing performance of the two-dimensional material modified SPR sensor was experimentally studied,and the biological experiments were performed on the graphene modified SPR sensor.更多还原