Prof. Ernesto Joselevich
The Drake Professor of Nanotechnology, Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, ISRAEL.
Nanometer-scale materials can have unique properties depending on their size and dimensionality and serve as building blocks for a variety of functional systems. For this, it is important to control their structure at all levels from the atomic scale to the integration large scale. Owing to their high surface-to-volume ratio, their surface and their interface with their substrate and matrix can greatly determine their properties as well. We will show how understanding and exploiting these surfaces and interfaces enables us to produce nanomaterials with exquisite control of their structure, geometry, crystallographic orientation, polarity, and even chirality! This yields novel one-dimensional (1D), two-dimensional (2D) and mixed-dimensional (XD) nanostructures with unique optical, electronic, optoelectronic and magnetic properties, giant magnetoresistance and coherent electron transport through chemically and topologically protected surface states at unusually high temperatures. This control of the structure and properties of nanomaterials allows us to integrate them into devices for many potential applications, from energy harvesting and storage to sensing, logics, and quantum computing.