Collection of scientific works Nanosystems, nanomaterials, nanotechnologies
Year 2025 Volume 23, Issue 4
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R. Salome Mercy PONRANI1, S. G. REJITH1, D. Esther NANCY2, and S. C. Vella DURAI3

1Department of Physics, St. Xavier's College, Palayamkottai, IN-627002 Tirunelveli, Tamil Nadu, India
2Department of Physics, Sarah Tucker College, IN-627007 Tirunelveli, Tamil Nadu, India
3PG and Research Department of Physics, Sri Paramakalyani College, Alwarkurichi. IN-627412 Tenkasi, Tamil Nadu, India

Investigations on the Linear Optical Properties of Copper, Silver and Gold Nanoparticles for Surface-Plasmon Resonance Applications

1075–1084 (2025)

PACS numbers: 42.70.Qs, 61.05.cp, 73.20.Mf, 78.20.Ci, 78.40.Kc, 78.67.Bf, 81.07.Wx

Received 10 November, 2024

Noble metals have been extensively studied for plasmonic energy, catalysis, photonics, and sensing applications because of their high localized surface-plasmon resonance (LSPR) responses. The LSPR phenomenon, which is the collective oscillation of electrons on metallic nanoparticles (NPs) triggered by light photons at the resonant frequency. This property is present in metal NPs like Au, Ag, and Cu. Using power x-ray diffraction (PXRD) method, structural analysis is carried out. Diffuse reflectance spectroscopy (DRS) of UV-Vis is a predominantly helpful method for describing the LSPR behaviour of metallic NPs. In this work, chemical reduction method is used to fabricate gold, silver, and copper NPs, and UV DRS is used to examine their LSPR activity (there is a plasmon-resonance peak for pure copper, silver, and gold NPs).

KEY WORDS: nanoparticles, resonance, LSPR, spectroscopy, DRS

DOI: https://doi.org/10.15407/nnn.23.04.1075

Citation:
R. Salome Mercy Ponrani, S. G. Rejith, D. Esther Nancy, and S. C. Vella Durai, Investigations on the Linear Optical Properties of Copper, Silver and Gold Nanoparticles for Surface-Plasmon Resonance Applications, Nanosistemi, Nanomateriali, Nanotehnologii, 23, No. 4: 1075–1084 (2025); https://doi.org/10.15407/nnn.23.04.1075

Funding / Acknowledgments:
Mrs. R. Salome Mercy Ponrani (Register No. 21221282132005), Research Scholar, is thankful to the authorities of both the Department of Physics, St. Xavier's College, Palayamkottai, Tirunelveli-627002, Tamilnadu, India (affiliated to Manonmanium Sundaranar University, Abishekapatti, Tirunelveli-627012, Tamilnadu, India) and the Department of Physics, Sarah Tucker College, Tirunelveli-627007, Tamilnadu, India. The authors thank Heber Analytical Instrumentation Facility (HAIF), Trichy and Sophisticated Test and Instrumentation Facility (STIC), Cochin for taking characterization studies.

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