Dear all,

we are excited to announce the next Materials Science webinar
which will take place on the Zoom platform the 16/11/2020 at 15.30.

Details  to Join Zoom Meeting
https://zoom.us/j/94421839036?pwd=eDZWV2FMVU1mb2s1Nks3OHRERm5DZz09

Meeting ID: 944 2183 9036
Passcode: XE0N9A

TITLE: Engineering the Electronic and Chemical Properties of Graphene via Functionalization and Intercalation.

SPEAKER: Liv Hornekær, Dept. Physics and Astronomy & interdisciplinary
Nanoscience Center- iNANO, Aarhus University, Denmark.

ABSTRACT: Extensive control of the electronic and chemical properties of graphene on Ir(111) is available through chemical functionalization [1] and intercalation. Combined Scanning Tunneling Microscopy, (Standing Wave) X-ray Photoemmission Spectroscopy and Density Functional Theory calculations show how on one hand, functionalization structures can be controlled via intercalation, while conversely, intercalation can be hindered via chemical functionalization. Furthermore, unique oxygen functionalization structures [2] and molecular hydrogen dissociative adsorption pathways [3] are available in this system. Overall this allows for extensive control of electronic properties for band gap engineering [1], as well as control of the graphene-substrate interaction, providing proof-of-principle pathways to e.g. enhance the coating properties of graphene on metal surfaces [4].

4. Richard Balog et al. Mat. 9, 315 (2010); J. H. Jørgensen et al., ACS Nano 10, 10798 (2016)
5. Kyhl, R. Balog, A. Cassidy, J. Jørgensen, A.Grubisic-Čabo, L. Trotochaud, H. Bluhm, L. Hornekær, ACS Applied Nano Materials 1, 4509 (2018)
6. Cassidy, S. Pedersen, H. Bluhm, V. Calisti, T. Angot,  E. Salomon, R. Bisson and L. Hornekær, Phys. Chem. Chem. Phys. 20, 28370 (2018); Novotny et al., JACS 140, 5102 (2018); Jung et al., JACS 136, 8528 (2014)
7. Kyhl et al., ACS Nano 12, 513 (2018)