An alternative approach for ζ-factor measurement using pure element nanoparticles

Area of Science:

• Materials Science
• Nanotechnology
• Analytical Chemistry

Background:

• Accurate chemical composition analysis of nanostructures is crucial for understanding their properties.
• Current methods for characterizing hetero nanostructures often lack reliability and quantitative precision.
• Transmission electron microscopy (TEM) is a powerful tool, but spectral quantification remains a challenge.

Purpose of the Study:

• To develop a novel and straightforward approach for the quantitative analysis of energy dispersive X-ray (EDX) spectra.
• To address the challenges in reliably measuring the chemical composition of hetero nanostructures.
• To establish a new standard for chemical characterization in electron microscopy.

Main Methods:

• The proposed method combines electron tomography with the ζ-factor technique.
• Energy dispersive X-ray (EDX) spectra were acquired using a transmission electron microscope (TEM).
• The approach was validated using gold-silver (Au-Ag) and gold-platinum (Au-Pt) hetero nanostructures.

Main Results:

• Demonstrated the reliability and applicability of the novel quantification method.
• Successfully analyzed the chemical composition of Au-Ag and Au-Pt hetero nanostructures.
• The method provides a straightforward way to obtain quantitative chemical information.

Conclusions:

• The developed method offers a simple yet effective solution for quantifying EDX spectra in TEM.
• This technique enhances the chemical characterization capabilities for hetero nanostructures.
• The approach has the potential to become a widely adopted standard in the field.