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Polyol-Assisted Synthesis of Ni/Cu/Ag Trimetallic Nanoparticles for Nonlinear Optical Applications
Shilpa Molakkalu Padre1, Shivakumar Jagadish Shetty1, Saideep Shirish Bhat1
1Nano and Functional Materials Lab (NFML), Department of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
ACS Omega
|December 2, 2024
Summary
This study synthesized novel nickel/copper/silver trimetallic nanoparticles (TMNPs) using the polyol method. These TMNPs exhibit significant nonlinear optical properties, suggesting potential applications in optoelectronics and optical limiting.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Trimetallic nanoparticles (TMNPs) offer diverse applications due to unique material combinations.
- Understanding nonlinear optical (NLO) properties of TMNPs is crucial for advanced material development.
Purpose of the Study:
- To synthesize and characterize nickel/copper/silver (Ni/Cu/Ag) trimetallic nanoparticles (TMNPs).
- To investigate the nonlinear optical (NLO) properties of the synthesized Ni/Cu/Ag TMNPs.
- To assess their potential for optoelectronic and optical limiting applications.
Main Methods:
- Synthesis of Ni/Cu/Ag TMNPs via the polyol method.
- Characterization using surface plasmon resonance (SPR) spectroscopy.
- Nonlinear optical (NLO) studies including z-scan analysis.
Main Results:
- Formation of Ni/Cu/Ag TMNPs confirmed by a broad SPR peak at 443 nm.
- Demonstrated thermally induced excited-state absorption (nonlinear absorption coefficient, β).
- Observed self-focusing effect indicating a nonlinear refractive index (n2).
Conclusions:
- The synthesized Ni/Cu/Ag TMNPs possess significant NLO properties.
- These TMNPs show promise for applications in optoelectronics.
- The material is suitable for optical limiting applications.

