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Center for Quantum 2D Materials

Center for Quantum 2D Materials (CQ2DM) brings together researchers from uOttawa and National Research Council (NRC) interested in materials, nanostructures and devices for Quantum Technologies.

We are interested in quantum nanostructures in III-V and transition metal dichalcogenite (TMDC) semiconductors. The TMDCs are examples of a class of Van der Waals materials having weakly bound atomic planes. In the bulk form these materials can be not only semiconductors but also metals, ferromagnets, and superconductors. The properties of these materials can change drastically by reducing their thickness down to a single atomic layer. For example, a single atomic layer of carbon, graphene, becomes a semimetal while MoS2, a lubricant and indirect gap semiconductor, when thinned down to a single atomic layer becomes a truly two dimensional direct gap semiconductor.

Importantly, by extracting a single atomic plane from each of these materials one can assemble layer-by-layer a new material, van der Waals heterostructure, combining semiconductor, metal, ferromagnet and superconductors into a myriad of new artificial materials. The properties of these new materials can be engineered by relative alignment of subsequent layers. The electronic, optical and magnetic properties of these Quantum 2D Materials can also be engineered by constructing quantum dots, nanostructures with controlled lateral size, shape, edge, carrier density and number of layers. We are at the opening of a new frontier in quantum dots in 2D Quantum Materials.

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