Beilstein Journal of Nanotechnology | |
Nitrous oxide as an effective AFM tip functionalization: a comparative study | |
Bruno de la Torre^1^21  Taras Chutora^12  | |
[1] Institute of Physics of the Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic^2;Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic^1 | |
关键词: atomic force microscopy; Au(111); carbon monoxide; functionalization; high resolution; nitrous oxide; submolecular resolution; | |
DOI : 10.3762/bjnano.10.30 | |
学科分类:地球科学(综合) | |
来源: Beilstein - Institut zur Foerderung der Chemischen Wissenschaften | |
【 摘 要 】
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.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO201911049693673ZK.pdf | 1257KB | download |