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Multifunctional Nanostructures and Nanopocket Particles Fabricated by Nanoimprint Lithography
Stefan Schrittwieser1, Michael J Haslinger2, Tina Mitteramskogler2
1AIT Austrian Institute of Technology, Molecular Diagnostics, 1210 Vienna, Austria.
Nanomaterials (Basel, Switzerland)
|January 1, 2020
Summary
Researchers developed a versatile nanofabrication method to create tailored nanomaterials, including elliptical pillars and nanopockets. This scalable technique enables precise control over optical and magnetic properties for diverse applications.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Engineering
Background:
- Growing demand for scalable and reproducible nanofabrication methods.
- Need for multifunctional nanomaterials with precisely engineered physical properties.
- Existing methods often lack versatility for tailored applications.
Purpose of the Study:
- To report the fabrication of two novel nanomaterial types: uniform arrays of elliptical pillars and nanopockets with nano-cavities.
- To demonstrate a versatile fabrication method for creating multifunctional nanomaterials.
- To enable the design and production of nanomaterials with specific optical and magnetic properties.
Main Methods:
- Nanoimprint lithography.
- Physical and wet-chemical etching.
- Sputter deposition of thin films.
- Characterization using microscopic and optical methods.
- Optical simulations for property prediction.
Main Results:
- Successful fabrication of uniform elliptical pillar arrays and nanopocket nanoparticles.
- Demonstration of nanopockets' transferability to solution, forming nanoparticle dispersions.
- Experimental optical data showed good agreement with simulation results.
- Achieved multifunctional nanomaterials with defined optical and magnetic properties.
Conclusions:
- The developed versatile method allows for the fabrication of nanomaterials with tailor-made physical properties.
- Properties can be precisely designed using modeling prior to fabrication.
- Potential applications span biology, medicine, electronics, photovoltaics, and photocatalysis.
