Abstract of research activity
The main research activity of Nataliya Kalashnyk since her doctorate concerns the understanding of growth mechanisms and organization of matter at the ultimate scales, the interactions, nanostructures on surfaces and at interfaces, as well as the resulting physical properties. Her expertise is mainly in the field of the surface functionalization of materials with nanostructures of 0D, 1D or 2D dimensionalities.  Her research focuses on mastering the synergy between different types of materials by creating multicomponent systems on the surface of a bulk material. The studies deal in particular with self-assemblies on surfaces and on-surface reaction mechanisms with a view to developing functional nanostructures. The diversity of properties, in particular conduction, optical response or reactivity, makes these nanostructured surfaces particularly attractive. For example, the assembly of 2D materials and nano-objects on the surfaces is of great interest for different fields such as flexible electronics, photovoltaic devices, or optoelectronics. To achieve these objectives, Nataliya Kalashnyk uses advanced experimental techniques like various surface probes (STM, AFM, XPS, etc) as well as synchrotron radiation allowing a fine description of both the organization and the properties at the nanometer scale.
https://orcid.org/0000-0003-0314-6091

Current research interests

•  Scanning probe microscope (STM, AFM)
• Surface covalent organic frameworks (SCOFs) and graphene nanoribbons (GNRs)
• Functional hybrid multilayered van der Waals heterostructures
•  Tuning of electronic properties of 1D and 2D materials with light switchable molecules

Current project activities

• SPS NATO (390 000 €, participant). Selective quantum sensor for detection of CBRN agents in gas and liquid media. Karazin Kharkiv National University, NTU « KhPI » and ILTPE (Ukraine) / Université de Nantes (France)
• PHC RILA (13 000 €, participant). Electronic and optical properties of extreme nanowires. Université de Nantes (France) / University of Sofia (Bulgaria)

Five selected recent publications

• Self-accommodating honeycomb networks from supramolecular self-assembly of s-indacene-tetrone on silver surfaces.
  N. Kalashnyk, S. Clair.
  Langmuir 38, 1067 (2022)
  doi: 10.1021/acs.langmuir.1c02640
• Edge-on self-assembly of tetra-bromoanthracenyl-porphyrin on silver surfaces.
  N. Kalashnyk, M. Daher-Mansour, J. Pijeat, R. Plamont, X. Bouju, T. S. Balaban, S. Campidelli, L. Masson, S. Clair.
  J. Phys. Chem. C 124, 22137 (2020)
  doi: 10.1021/acs.jpcc.0c05908
• Functional hybrid multilayered van der Waals heterostructures from graphene and self-assembled supramolecular 2D crystals.
  N. Kalashnyk, A. Gouesmel, E. Kim, A.-J. Attias, F. Charra.
  2D Mater. 6, 045016 (2019)
  doi: 10.1088/2053-1583/ab2ba7
•  Vibrational dynamics of extreme 2×2 and 3×3 potassium iodide nanowires encapsulated in single-walled carbon nanotubes.
  V. G. Ivanov, N. Kalashnyk, J. Sloan, E. Faulques.
  Phys. Rev. B 98, 125429 (2018)
  doi: 10.1103/PhysRevB.98.125429
• On-surface synthesis of aligned functional nanoribbons monitored by scanning tunneling microscopy and vibrational spectroscopy.
  N. Kalashnyk, K. Mouhat, J. Oh, J. Jung, Y. Xie, L. Giovanelli, E. Salomon, T. Angot, F. Dumur, D. Gigmes, S. Clair.
  Nature Commun. 8, 14735 (2017)
  doi: 10.1038/ncomms1473