Abstract

A surface plasmon resonance (SPR) based optical fiber sensor, employing few layers of \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene on a thin gold (Au) film to enhance the sensitivity of the sensor is theoretically proposed. The detection accuracy (DA) and the figure of merit (FOM), the two other important performance parameters, have also been assessed for the proposed configuration. Moreover, a comparative investigation of \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene with transition metal dichalcogenide (TMDC) materials such as \(\hbox {MoS}_{2}\), \(\hbox {MoSe}_{{2}}\) and \(\hbox {WS}_{{2}}\) coated over Au film is also carried out. The sensor configuration with fiber core/Au layer/few layer \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene comes out to be most sensitive when compared with the analogous configuration having TMDC materials instead of \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene. The proposed sensor configuration shows up to 49% enhancement in the sensitivity by using few layer \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene. Thus, present work divulges potential applications of few layer \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene which comes out to be a promising chemical and bio-sensing material. It is believed that the use of few layer \(\hbox {Ti}_{3}\hbox {C}_{2}\) MXene could find favorable applications in the designing of high sensitivity SPR based refractive index sensors.

Graphic abstract

中文翻译：

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在光纤SPR传感器上应用几层$$ \ hbox {Ti} _ {3} \ hbox {C} _ {2} $$ Ti 3 C 2 MXene来提高性能

摘要

一种基于表面等离振子共振（SPR）的光纤传感器，在金（Au）薄膜上采用几层\（\ hbox {Ti} _ {3} \ hbox {C} _ {2} \） MXene来增强理论上提出了传感器的灵敏度。另外，还针对提议的配置评估了其他两个重要的性能参数：检测精度（DA）和品质因数（FOM）。此外，对\（\ hbox {Ti} _ {3} \ hbox {C} _ {2} \） MXene与过渡金属二硫化碳（TMDC）材料（例如\（\ hbox {MoS} _ {2}还执行了在金膜上涂覆的\），\（\ hbox {MoSe} _ {{2}} \）和\（\ hbox {WS} _ {{2}} \）。具有纤芯/金层/少量层的传感器配置\（\ hbox {Ti} _ {3} \ hbox {C} _ {2} \）与具有TMDC材料而不是\（\ hbox {Ti} _ {3 } \ hbox {C} _ {2} \） MXene。拟议的传感器配置通过使用少量的\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ boxbox \ {{}} 因此，当前的工作揭示了几层\（\ hbox {Ti} _ {3} \ hbox {C} _ {2} \） MXene的潜在应用，这是一种很有前途的化学和生物传感材料。相信使用几层\（\ hbox {Ti} _ {3} \ hbox {C} _ {2} \） MXene可以在基于高灵敏度SPR的折射率传感器的设计中找到有利的应用。

图形摘要