Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Tuning of Localized Surface Plasmon Resonance in Copper-Copper Oxide Core-Shell Quantum Dots for the Application in Biosensors

Version 1 : Received: 14 March 2020 / Approved: 16 March 2020 / Online: 16 March 2020 (01:16:25 CET)

How to cite: Prasannan Geetha, P.; Ramachandran, A.; Nair, S.S. Tuning of Localized Surface Plasmon Resonance in Copper-Copper Oxide Core-Shell Quantum Dots for the Application in Biosensors. Preprints 2020, 2020030253 (doi: 10.20944/preprints202003.0253.v1). Prasannan Geetha, P.; Ramachandran, A.; Nair, S.S. Tuning of Localized Surface Plasmon Resonance in Copper-Copper Oxide Core-Shell Quantum Dots for the Application in Biosensors. Preprints 2020, 2020030253 (doi: 10.20944/preprints202003.0253.v1).

Abstract

Surface Plasmon Resonance (SPR) is an attracting property of certain transition metals when they are synthesized in nano-range giving rise to promising optical applications. However, most SPR and associated applications are limited to the noble metal nanoparticles, which limits their potential due to high production cost. We report surface plasmon resonance in copper-copper oxide core-shell quantum dots synthesized via chemical route studied by using UV-Visible spectrophotometry. Tuning of the plasmonic resonance with respect to the particle diameter is achieved by an inexpensive all chemical route. Photoluminescence measurements also support the data. This size reduction leads to remarkable changes in its optical response as compared to the bulk metal. The results point towards applications of these materials in tunable SPR based biosensors.

Subject Areas

copper; surface plasmon resonance; bio-sensor

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