Cu-TBPP and PTCDA molecules on insulating surfaces studied by ultra-high-vacuum non-contact AFM
Open Access
- 22 January 2004
- journal article
- Published by IOP Publishing in Nanotechnology
- Vol. 15 (2) , S91-S96
- https://doi.org/10.1088/0957-4484/15/2/019
Abstract
The adsorption of two kinds of porphyrin (Cu-TBPP) and perylene (PTCDA) derived organic molecules deposited on KBr and Al2O3 surfaces has been studied by non-contact force microscopy in ultra-high vacuum, our goal being the assembly of ordered molecular arrangements on insulating surfaces at room temperature. On a Cu(100) surface, well ordered islands of Cu-TBPP molecules were successfully imaged. On KBr and Al2O3 surfaces, it was found that the same molecules aggregate in small clusters at step edges, rather than forming ordered monolayers. First measurements with PTCDA on KBr show that nanometre-scale rectangular pits in the surface can act as traps to confine small molecular assemblies.Keywords
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This publication has 19 references indexed in Scilit:
- Direct Determination of the Energy Required to Operate a Single Molecule SwitchPhysical Review Letters, 2003
- Cover Picture: ChemPhysChem 10/2002Chemphyschem, 2002
- Organic Molecules Acting as Templates on Metal SurfacesScience, 2002
- Organic Molecular FilmsPublished by Springer Nature ,2002
- Dynamic force microscopy of copper surfaces: Atomic resolution and distance dependence of tip-sample interaction and tunneling currentPhysical Review B, 2000
- Atomically resolved edges and kinks of NaCl islands on Cu(111): Experiment and theoryPhysical Review B, 2000
- Spatially Resolved Tunneling along a Molecular WirePhysical Review Letters, 1999
- One-dimensional confinement of organic molecules via selective adsorption on CaF1 versus CaF2Chemical Physics Letters, 1999
- Conformational identification of individual adsorbed molecules with the STMNature, 1997
- The growth forms of small Au particles grown on KBr and NaCl substrates having monatomic stepsJournal of Crystal Growth, 1989