Publication: Sensitivity Performance Of Ag/TiN And Ag/ZrN Based SPR Sensors For Glucose And Sucrose Identification
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Optoelectronics, Romania
Abstract
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.
Description
Volume: 15, No. 11-12, November-December 2021( p. 564-571)
Keywords
Surface plasmon resonance (SPR), Silver/Titanium Nitrate (Ag/TiN), Silver/Zirconium Nitrate (Ag/ZrN), Glucose, Sucrose, Honey
Citation
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).