Coates, Sam 
ORCID: 0000-0002-8408-1703, McGrath, Ronan ORCID: 0000-0002-9880-5741, Sharma, Hem Raj ORCID: 0000-0003-0456-6258 and Tamura, Ryuji
(2021)
Pentacene growth on the (111) surface of the 1/1 Au-Al-Tb approximant: Influence of surface geometry on adsorption.
PHYSICAL REVIEW MATERIALS, 5 (7).
076002-.
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Pn111_revision.pdf - Author Accepted Manuscript Download (5MB) | Preview |
Abstract
Molecular adsorption on both quasicrystalline and approximant substrates has produced a number of pseudomorphic films, and has led to a deeper understanding of the chemistry of the surfaces of these materials. Here, the recently reported reconstructed (111) surface of the 1/1 Au-Al-Tb Tsai-type approximant has been used as a template for pentacene (Pn) adsorption, which is investigated using scanning tunneling microscopy. This surface provides unique varieties of adsorption sites compared to a normal metal surface. After room-temperature deposition, the Pn molecules are mobile yet exhibit a structure which indicates a bond with the Tb atoms of the surface, while reflecting the twofold symmetrical nature of the reported Au/Al row reconstruction. Postdeposition annealing shows a linear arrangement of molecules in a specific adsorption geometry, likely corresponding to the most favorable energetic configuration.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 27 Aug 2021 14:20 |
| Last Modified: | 15 Mar 2024 02:45 |
| DOI: | 10.1103/PhysRevMaterials.5.076002 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3134937 |
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