Journal of Nanomedicine & Nanotechnology

The optical properties of individual silver nanoparticles in Ag/Ag₂O composites synthesized by oxygen plasma treatment of silver thin films

26^th International Conference on ADVANCED NANOSCIENCE AND NANOTECHNOLOGY

December 05-06, 2022 | Dubai, UAE

Kamal Kayed

Damascus University, Syria

Scientific Tracks Abstracts: J Nanomed Nanotechnol

Abstract:

In this work, we present a more complete description of the optical properties of the silver nanoparticles formed in silver oxide thin films. Ag/Ag2O composites were synthesized by treating silver thin films manufactured by thermal evaporation method with oxygen plasma afterglow. The results showed that exposing silver thin films to oxygen plasma afterglow leads to a monocrystalline structure of silver oxide. Consequently, the relationship between the crystal size and the characteristics of the plasmons optical absorption peaks was studied. A slight degradation of plasmon peaks of the individual silver nanoparticles was observed. We suggested that this degradation might be due to the mutual interaction between the individual silver nanoparticles located near the Ag2O grain shell and the larger silver nanoparticles in neighboring grains. We found that the degree of degradation is related to the Ag2O grain size. On the other hand, the origin of each fluorescence peak in the Raman spectra of the prepared films was determined. Recent Publications 1. Kayed, K., Kurd, D.B (2022) The Effect of Oxidation Temperature on the (1000–1300) cm−1 Band in FT-IR Spectra of Silicon Oxide Synthesized by Thermal Oxidation of Silicon Wafers. Silicon. 2. Kayed, K., Kurd, D.B (2022) The Effect of Annealing Temperature on the Structural and Optical Properties of Si/SiO2 Composites Synthesized by Thermal Oxidation of Silicon Wafers. Silicon. 14: 5157-5163. 3. Kayed, K. (2022) The Mirror Image Symmetry in the Optical Absorption/Luminescence Spectra of Silver Nanoparticles in Ag/ Ag2O Composites Synthesized by Oxygen Plasma Treatment of Silver Thin Films. Plasmonics 17:, 13–19.

Biography :

Kamal Kayed has completed his PhD at the age of 36 years from Damascus University, Syria. He is Associate Professor at Damascus University, Syria. He has 33 publications that have been cited over 100 times, and his publication H-index is 5 and has been serving as an reviewer board member of reputed Journals.