The adhesive layer plays a significant role in the fabrication process of plasmonic nanoantennas, micro-biosensors, nanostructures, solar cells, etc., as it delivers support to plasmonic material coating. This article discusses a study on the effects of using five different adhesive materials with an externally gold-screened microstructure fiber plasmonic sensor within the refractive index (RI) sensing range of 1.37–1.40. Numerical analyses are conducted to examine the effects of using titanium dioxide (TiO₂), tantalum pentoxide (Ta₂O₅), indium tin oxide (ITO), zinc oxide (ZnO), and SU-8 3000 photoresist to support gold covering on the exterior portion of the fiber. The influences of each of the adhesive materials are investigated with respect to the sensor’s sensitivity for thickness variations between 5 and 20 nm. Without any adhesive layer, the proposed sensor exhibits about 1136.10 RIU⁻¹ of amplitude interrogated sensitivity (AIS) at RI of 1.38, 14,500 nm/RIU of wavelength interrogated sensitivity (WIS), and 6.89 × 10^–6 RIU of resolution at RI of 1.39. According to the analyses, it is observed that the AIS of the sensor decreases as the thickness of the adhesive layer increases. Moreover, with 5 nm of TiO₂, Ta₂O₅, ITO, ZnO, and SU-8 3000, photoresist adhesive layers with gold, respectively, 9.29%, 7.13%, 12.38%, 5.85%, and 1.17% reductions in the AIS of the sensor have been found.

粘合剂层在等离子纳米天线，微生物传感器，纳米结构，太阳能电池等的制造过程中起着重要作用，因为它为等离子材料涂层提供了支撑。本文讨论了在折射率（RI）感应范围1.37–1.40范围内使用五种不同的粘合材料和外部镀金的微结构纤维等离子体传感器的影响的研究。进行了数值分析，以检查使用二氧化钛（TiO ₂），五氧化_二钽（Ta ₂ O ₅），氧化铟锡（ITO），氧化锌（ZnO）和SU-8 3000光刻胶，以在光纤外部覆盖金。关于传感器对于5到20 nm之间厚度变化的灵敏度，研究了每种粘合材料的影响。在没有任何粘合剂层的情况下，拟议的传感器在RI为1.38时具有约1136.10 RIU ^-1的幅度询问灵敏度（AIS），在波长为RI时具有14,500 nm / RIU的波长询问灵敏度（WIS），以及6.89×10 ^–6 RIU的分辨率1.39。根据分析，观察到传感器的AIS随着粘合剂层的厚度增加而降低。此外，在5 nm的TiO _2中，Ta ₂ O ₅分别用ITO，ZnO和SU-8 3000镀金的光致抗蚀剂，发现传感器的AIS降低了9.29％，7.13％，12.38％，5.85％和1.17％。