Formation of 2D flakes from chemical cutting of prefabricated nanoparticles and van der Waals heterostructure devices made using the same
AssigneeNanoco Technologies Ltd.
InventorsNigel Pickett, Steven Daniels, Ombretta Masala
Life of this patent
Estimating the term…
Abstract
A method of synthesis of two-dimensional (2D) nanoflakes comprises the cutting of prefabricated nanoparticles. The method allows high control over the shape, size and composition of the 2D nanoflakes, and can be used to produce material with uniform properties in large quantities. Van der Waals heterostructure devices are prepared by fabricating nanoparticles, chemically cutting the nanoparticles to form nanoflakes, dispersing the nanoflakes in a solvent to form an ink, and depositing the ink to form a thin film.
Claims21
A method of fabricating a two-dimensional nanoflake comprising:
- fabricating a nanoparticle;
- and
- refluxing the nanoparticle in a solvent to form the two-dimensional nanoflake.
A method of fabricating a two-dimensional nanoflake comprising:
- fabricating a nanoparticle;
- stirring the nanoparticle in a first solvent in the presence of a first intercalating agent and a second intercalating agent for a first time period;
- and
- adding a second solvent and stirring for a second time period.
A method of preparing a van der Waals heterostructure device comprising:
- fabricating nanoparticles;
- chemical cutting of the nanoparticles to form two-dimensional nanoflakes;
- dispersing the nanoflakes in a solvent to form an ink;
- and
- depositing the ink to form a thin film.
A method of fabricating two-dimensional nanoflakes, the method comprising:
- fabricating a nanoparticle;
- and
- refluxing the nanoparticle in a solvent to convert the nanoparticle into a plurality of two-dimensional nanoflakes.
Dependencies are inferred from the claim text.