Peter Bøggild

We do research in graphene and other two-dimensional nanomaterials - how they can be created, modified and used in applications, and how entirely new abilities can be exposed by engineering and combining two-dimensional materials on the atomic scale.

Research

Some of our current interests are:

Graphene and other two-dimensional (2D) materials: properties and their modification

Graphene is two-dimensional sheet of carbon atoms with an array of astounding physical properties. It is also just one out thousands of 2D materials with different properties, which offer us a collection of very special materials for tomorrow’s technology. We explore their properties, and how these can be controlled for instance by nanostructuring. We believe that the most important applications come when we learn how to combine the properties, such creating high performance, flexible, light, low power yet high performance electronics and sensors – and this has become possible with 2D materials. Reference:

2D heterostructures and metamaterials

We can combine the 2D materials layer by layer into nanolaminate "stacks", that in essence become new materials - metamaterials - constructed from the ground up, atom-by-atom layer. This can be used to make better photodetectors/solar cells, faster electronics or better sensors, and we are interested in learning as much as we can about the assembly process, the metamaterials and how they can be used in applications. We collaborate closely with Booth (Nanotech) on developing next generation techniques for assembling heterostructures.

Electronic/optical sensors and components

As a partner in the Graphene Flagship, we are working on emerging electronic devices and sensors. Many of the 2D materials are semiconducting, and we work on overcoming some of the technical difficulties in creating high performance nanotransistors from these materials. We also look into ballistic graphene devices, where electrons move essentially without scattering through devices in a way that resemble how light moves in a microscope with optical lenses and mirrors.

Synthesis, metrology and applications of 2D materials

2D materials can be created by chemical vapor deposition. Here chemical precursors decompose on a catalytical surface, which are eventually covered with the 2D crystals constructed from the precursors. These films can be very large, and transferred onto polymer of silicon wafers or polymers, they represent an exciting starting point for exploring large-scale applications of 2D materials. We have also worked for many years in collaboration with Prof Jepsen (Fotonik) and Dr. Petersen (Nanotech) on developing efficient, non-contact

Order and disorder in quantum transport systems

A particular interesting aspect of these nanomaterials is they are “open” – every atom is visible, and can be removed, replaced or bound to a specific molecule. This “open architecture” is a playground for materials science on the atomic scale. We are interested in learning more about how order and disorder affects the properties; sometimes order is what makes the device work; sometimes it is disorder, which is needed. Nanostructuring is how we control the atomic structure at the borderline between order and disorder, on the atomic scale, to push the 2D materials beyond their own limitations.