mortazavi-resonancetunable-2012.pdf (240.65 kB)
A resonance tunable and durable LSPR nano-particle sensor : AL2O3 capped silver nano-disks
journal contribution
posted on 2012-01-01, 00:00 authored by Daryoush Mortazavi, Abbas KouzaniAbbas Kouzani, K VernonLocalized surface plasmon resonance (LSPR) biosensors are employed to detect target biomolecules which have particular resonance wavelengths. Accordingly, tunability of the LSPR wavelength is essential in designing LSPR devices. LSPR devices employing silver nano-particles present better efficiencies than those using other noble metals such as gold; however, silver nano-particles are easily oxidized when they come in contact with liquids, which is inevitable in biosensing applications. To attain both durability and tunabilty in a LSPR biosensor, this paper proposes alumina (AL2O3) capped silver nano-disks. It is shown that through controlling the thickness of the cap, the LSPR resonance frequency can be finely tuned over a wide range; and moreover, the cap protects silver nano-particles from oxidation and high temperature.
History
Journal
Progress in electromagnetics researchVolume
130Pagination
429 - 446Publisher
Electromagnetics AcademyLocation
Cambridge, MAISSN
1070-4698eISSN
1559-8985Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2012, The AuthorsUsage metrics
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Localized surface plasmon resonance (LSPR)LSPRbiosensorsbiomoleculesalumina (AL2O3) capped silver nano-disksresonance frequencyoxidationhigh temperatureScience & TechnologyTechnologyPhysical SciencesEngineering, Electrical & ElectronicPhysics, AppliedTelecommunicationsEngineeringPhysicsENHANCED RAMAN-SPECTROSCOPYATOMIC LAYER DEPOSITIONSENSITIVITY-ENHANCEMENTLIGHT-SCATTERINGFANO RESONANCESHIGH-RESOLUTIONMETAMATERIALSIMPLEMENTATIONNANOPARTICLESPLASMONICS
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