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WAN MAISARAH MUKHTAR1,* , NURUL ATIRAH NURADDIN1
This study was carried out to investigate the effect of hybrid plasmonic material thicknesses, which are Ag/TiN and Ag/ZrN on the sensitivity of SPR sensor in detecting glucose and sucrose. A Krestchmann configuration of surface plasmon resonance (SPR) sensor had been theoretically developed via prism coupling technique. A 633nm of red laser was incident onto the prism’s hypothenuse side to excite the SPR. The effect of Ag/TiN and Ag/ZrN thicknesses ranging from 35nm to 60nm on the sensitivity of SPR sensor was studied. The deployment of Ag/ZrN at 44nm/10nm thicknesses resulted the resonance angle shifting about 0.91º from 44.67º to 45.58º as it was exposed to the glucose and sucrose. In contrary, the Ag/TiN coated sensor indicated large angle shifting only for glucose detection which portrays its non-versatility feature. The proposed Ag/ZrN based SPR sensor able to identify the analytes, with almost similar refractive index values with sensitivity values of 0.6725 °/RIU (glucose detection) and 0.6724°/RIU (sucrose detection). In conclusion, Ag/ZrN (tAg=44nm, tZrN=10nm) offers better sensitivity and selectivity performance than Ag/TiN because of the absorption enhancement inside the Ag due to the high scattering efficiency of ZrN.
Surface plasmon resonance (SPR), Silver/Titanium Nitrate (Ag/TiN), Silver/Zirconium Nitrate (Ag/ZrN), Glucose, Sucrose, Honey.
WAN MAISARAH MUKHTAR, NURUL ATIRAH NURADDIN, Sensitivity performance of Ag/TiN and Ag/ZrN based SPR sensors for glucose and sucrose identification, Optoelectronics and Advanced Materials - Rapid Communications, 15, 11-12, November-December 2021, pp.564-571 (2021).
Submitted at: May 12, 2021
Accepted at: Nov. 24, 2021
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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