Journal
NANO LETTERS
Volume 11, Issue 7, Pages 2944-2948Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl201441b
Keywords
Quantum dots; molecular networks; self-assembly; scanning tunneling microscopy; adsorption at surfaces; Cu(111)
Categories
Funding
- NSF [CHE 07-49949, CHE 07-50334]
- Swedish Research Council (Vetenskapsradet VR) [621-2008-4346]
- NSF MRSEC [DMR 05-20471]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0750334] Funding Source: National Science Foundation
Ask authors/readers for more resources
Anthraquinone self-assembles on Cu(111) into a giant honeycomb network with exactly three molecules on each side. Here we propose that the exceptional degree of order achieved in this system can be explained as a consequence of the confinement of substrate electrons in the pores, with the pore size tailored so that the confined electrons can adopt a noble-gas-like two-dimensional quasi-atom configuration with two filled shells. Formation of identical pores in a related adsorption system (at different overall periodicity due to the different molecule size) corroborates this concept. A combination of photoemission spectroscopy with density functional theory computations (including van der Waals interactions) of adsorbate-substrate interactions allows quantum mechanical modeling of the spectra of the resultant quasi-atoms and their energetics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available