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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 1053-1056 |
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Sensitivity Improvement of Graphene Based Surface Plasmon Resonance Biosensor by Application of Aluminium Oxide Layer. ICOP & ICPET _ INPC _ ICOFS 2019; 25 :1053-1056
URL: http://opsi.ir/article-1-1914-en.html
URL: http://opsi.ir/article-1-1914-en.html
Abstract: (1711 Views)
We present a multi-layered surface plasmon resonance (SPR) biosensor based on gold/AL2O3/graphene for detection of biomolecules. The Kretschmann configuration is employed for the sensor arrangement. The maximum sensitivity of about 76°/RIU is obtained with a monolayer of graphene and the thicknesses of gold and AL2O3 layers equal to 50 nm and 20 nm respectively. Our proposed structure is 46% and 17% more sensitive compared to the conventional SPR biosensor (without graphene layer) and the conventional graphene-based SPR biosensor respectively.
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