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
- Adrian Epprecht
- Flattening and manipulation of the electronic structure of h-BN/Rh(111) nanomesh upon Sn intercalation
Surf. Sci. 672-673, 33 (2018)
→ DOI: 10.1016/j.susc.2018.03.007
- Remote doping of graphene on SiO2 with 5 keV x-rays in air
J. Vac. Sci. Technol. A, 36 (2018) 020603-1
→ DOI: 10.1116/1.5013003
- Centimeter-Sized Single-Orientation Monolayer Hexagonal Boron Nitride With or Without Nanovoids
Nano Letters, 18, 1205 (2018)
→ DOI: 10.1021/acs.nanolett.7b04752
- Fermi surface map of large-scale single-orientation graphene on SiO2
J. Phys.: Condens. Matter 29, 475001 (2017)
→ DOI: 10.1088/1361-648X/aa8f27
- Some Like It Flat: Decoupled h‐BN MonolayerSubstrates for Aligned Graphene Growth
ACS Nano 10, 11187 (2016)
→ DOI: 10.1021/acsnano.6b06240
- ...[→ more publications]