Article ; Online: Transition mechanism of the coverage-dependent polymorphism of self-assembled melamine nanostructures on Au(111).
Physical chemistry chemical physics : PCCP
2024 Volume 26, Issue 5, Page(s) 3941–3949
Abstract: Molecular self-assembled films have recently attracted increasing attention within the field of nanotechnology as they offer a route to obtain new materials. However, careful selection of the molecular precursors and substrates, as well as exhaustive ... ...
| Abstract | Molecular self-assembled films have recently attracted increasing attention within the field of nanotechnology as they offer a route to obtain new materials. However, careful selection of the molecular precursors and substrates, as well as exhaustive control of the system evolution is required to obtain the best possible outcome. The three-fold rotational symmetry of melamine molecules and their capability to form hydrogen bonds make them suitable candidates to synthesize this type of self-assembled network. In this work, we have studied the polymorphism of melamine nanostructures on Au(111) at room temperature. We find two coverage-dependent phases: a honeycomb structure (α-phase) for submonolayer coverage and a close-packed structure (β-phase) for full monolayer coverage. A combined scanning tunnel microscopy and density functional theory based-calculations study of the transition regime where both phases coexist allows describing the mechanism underlying this coverage driven phase transition in terms of the changes in the molecular lateral tension. |
|---|---|
| Language | English |
| Publishing date | 2024-01-31 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 1476244-4 |
| ISSN | 1463-9084 ; 1463-9076 |
| ISSN (online) | 1463-9084 |
| ISSN | 1463-9076 |
| DOI | 10.1039/d3cp05960j |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.