The project "2D materials" investigates two dimensional materials, i.e. materials that consist in surface and/or interface only.
The project significantly profited from international collaborations in concerted research projects (STREP and Sinergia). Today we are members in the Graphene flagship.
In collaboration with Dr. Marcella Iannuzzi, Prof Jürg Hutter UZH, Prof. P. Willmott, PSI Villigen, Dr. Matthias Schreck U Augsburg and the European Flagship Graphene (WP1).
The project started with the synthesis of single layer hexagonal boron nitride on nickel.
In 2003 the h-BN nanomesh was discovered.
It is the realization of a super-honeycomb with a lattice constant of 3.2 nm and was investigated in the subsequent years,
where large lateral electrical fields were found in the pores of the super-honeycomb.
Later it was shown that the super-honeycomb may be switched reversibly into a flat state by hydrogen intercalation. In 2012 it was demonstrated by low energy ion implantation that single atoms may be immobilized beneath the nanomesh forming nanotents and that the concommitant vacancy defects lead to the "can-opener" effect, i.e. the controlled creation of 2nm voids in the h-BN single layer.
- Prof. Jürg Osterwalder
- Prof. Thomas Greber
- Dr. Adrian Hemmi
- Carlo Bernard
- Hubert Nussbaumer
- Some Like It Flat: Decoupled h‐BN MonolayerSubstrates for Aligned Graphene Growth
ACS Nano 10, 11187 (2016)
→ DOI: 10.1021/acsnano.6b06240
- Switching stiction and adhesion of a liquid on a solid
Nature 534, 676 (2016)
→ DOI: 10.1038/nature18275
- Self-assembly of nanoscale lateral segregation profiles
Phys. Rev. B 93, 161402 (2016)
→ DOI: 10.1103/PhysRevB.93.161402
- Characterization of a cold cathode Penning ion source for the implantation of noble gases beneath 2D monolayers on metals: Ions and neutrals
J. Vac. Sci. Technol. A, 34 (2016) 020602
→ DOI: 10.1116/1.4939507
- Ar implantation beneath graphene on Ru(0001): nanotents and "can-opener" effect
Surf. Sci. 634 (2015) 95
→ DOI: 10.1016/j.susc.2014.11.004 [ZORA]
- ...[→ more publications]