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European Microscopy Congress 2020 Abstract Database

Advanced imaging of inorganic two-dimensional nanostructures

Advanced imaging of inorganic two-dimensional nanostructures

Session

PSA.1 - 1D & 2D Materials

Authors

Prof Valeria Nicolosi (1)

Affiliations

1. Trinity College Dublin

Keywords

2D nanomaterials, insitu TEM, aberration corrected STEM

Abstract text

Low-dimensional nanostructured materials such as organic and inorganic nanotubes, nanowires and platelets are potentially useful in a number of areas of nanoscience and nanotechnology due to their remarkable mechanical, electrical and thermal properties. However difficulties associated with their lack of processability have seriously hampered both. In the last few years dispersion and exfoliation methods have been developed and demonstrated to apply universally to 1D and 2D nanostructures. These are potentially important because they occur in >40 different types with a wide range of electronic properties, varying from metallic to semiconducting.

To make real applications truly feasible, however, it is crucial to fully characterize the nanostructures on the atomic scale and correlate this information with their physical and chemical properties. Advances in aberration-corrected optics in electron microscopy have revolutionised the way to characterise nano-materials, opening new frontiers for materials science. With the recent advances in nanostructure processability, electron microscopes are now revealing the structure of the individual components of nanomaterials, atom by atom. Here we will present an overview of very different low-dimensional materials issues, showing what aberration-corrected and in-situ electron microscopy can do to answer materials scientists’ questions. Particular emphasis will be given to the investigation of black phosphorous, layered double oxides and MXenes.

References

·       Nerl H.C., Pokle A., Jones L., Muller-Caspary K., van den Bos K.H.W., Downing C., McCarthy  E.K., Gauquelin N., Ramasse Q.M., Lobato I., Daly D., Idrobo J.C., Van Aert S., Van Tendeloo G., Sanvito S., Coleman J.N., Cucinotta C.S., Nicolosi V., “Self-Assembly of Atomically Thin Chiral Copper Heterostructures Templated by Black Phosphorus”, Advanced Functional Materials, 1903120, DOI: 10.1002/adfm.201903120 (2019)

·       Christopher Hobbs, Sonia Jaskaniec, Eoin K. McCarthy, Clive Downing, Konrad Opelt, Konrad Güth, Aleksey Shmeliov, Maurice C. D. Mourad, Karl Mandel & Valeria Nicolosi, “Structural transformation of layered double hydroxides: an in situ TEM analysis”, Nature Partner |Journal 2D Materials & Applications, DOI:10.1038/s41699-018-0048-4 (2018)

·       Edmund Long, Sean O’Brien, Edward A. Lewis, Eric Prestat, Clive Downing, Clotilde S. Cucinotta, Stefano Sanvito, Sarah J. Haigh, and Valeria Nicolosi, “An In- and Ex-situ TEM Study Into the Oxidation of Titanium (IV) Sulphide”, Nature NPJ 2D Materials and Applications, 1 (2017)