Nitrous oxide as an effective AFM tip functionalization: a comparative study

0505348 - FZÚ 2020 RIV DE eng J - Journal Article
Chutora, T. - De La Torre Cerdeño, Bruno - Mutombo, Pingo - Hellerstedt, Jack - Kopeček, Jaromír - Jelínek, Pavel - Švec, Martin
Nitrous oxide as an effective AFM tip functionalization: a comparative study.
Beilstein Journal of Nanotechnology. Roč. 10, Jan (2019), s. 315-321. ISSN 2190-4286. E-ISSN 2190-4286
R&D Projects: GA MŠMT EF16_019/0000760; GA MŠMT EF16_013/0001406; GA MŠMT(CZ) LM2015088; GA ČR GJ17-24210Y; GA MŠMT(CZ) LO1409
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760; OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406
Institutional support: RVO:68378271
Keywords : atomic force microscopy * Au(111) * carbon monoxide * functionalization * high resolution * nitrous oxide * submolecular resolution
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.612, year: 2019
Method of publishing: Open access

We investigate the possibility of functionalizing Au tips by N2O molecules deposited on a Au(111) surface and their further use for imaging with submolecular resolution. First, we characterize the adsorption of the N2O species on Au(111) by means of atomic force microscopy with CO-functionalized tips and density functional theory (DFT) simulations. Subsequently we devise a method of attaching a single N2O to a metal tip apex and benchmark its high-resolution imaging and spectroscopic capabilities using FePc molecules. Our results demonstrate the feasibility of high-resolution imaging. However, we find an inherent asymmetry of the N2O probe-particle adsorption on the tip apex, in contrast to a CO tip reference. These findings are consistent with DFT calculations of the N2O- and CO tip apexes.
Permanent Link: http://hdl.handle.net/11104/0296835