Printed Thin Magnetic Films via Ternary Hybrid Diblock Copolymer Films Containing Magnetic Iron Oxide and Nickel Nanoparticles
2024

Creating Magnetic Thin Films with Hybrid Nanoparticles

publication Evidence: moderate

Author Information

Author(s): Everett Christopher R., Jiang Xinyu, Reus Manuel A., Zhong Huaying, Bitsch Martin, Plank Martina, Gallei Markus, Opel Matthias, Schwartzkopf Matthias, Roth Stephan V., Müller-Buschbaum Peter

Primary Institution: Technical University of Munich

Hypothesis

Can ternary hybrid thin films composed of diblock copolymers and two types of magnetic nanoparticles be effectively fabricated using a one-step printing process?

Conclusion

The study successfully demonstrates the fabrication of ternary hybrid thin films that exhibit tunable magnetic properties for potential applications in magnetic sensing and data storage.

Supporting Evidence

  • Ternary hybrid films were created using a diblock copolymer and two types of magnetic nanoparticles.
  • The films exhibited ferrimagnetic properties that could be tuned by adjusting the concentration of nickel nanoparticles.
  • The study utilized advanced techniques like GISAXS to analyze the film formation process in real-time.
  • Different stages of film formation were identified, showing how the presence of nanoparticles affects the drying kinetics.

Takeaway

Scientists made special thin films using two types of tiny magnetic particles mixed with a plastic-like material, which can help in making better sensors and storage devices.

Methodology

The films were prepared using a one-step slot-die printing process, and their morphology and magnetic properties were analyzed using various techniques including GISAXS, AFM, and SQUID magnetometry.

Limitations

The study primarily focuses on low NP concentrations, and the effects of higher concentrations on film properties were not explored.

Digital Object Identifier (DOI)

10.1021/acsami.4c18920

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication