Self-assembled structures of trimesic acid on the Ag/Si(111)-(√3×√3)R30° surface
| Autor: | G. Sheerin, Attilio A. Cafolla |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Low-energy electron diffraction
Silicon Close-packing of equal spheres chemistry.chemical_element Surfaces and Interfaces Condensed Matter Physics Surfaces Coatings and Films law.invention chemistry.chemical_compound Crystallography chemistry law Microscopy Materials Chemistry Molecule Self-assembly Trimesic acid Scanning tunneling microscope |
| Zdroj: | Surface Science. 577:211-219 |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/j.susc.2005.01.006 |
| Popis: | The room temperature growth and ordering of trimesic acid (TMA), 1,3,5-benzenetricarboxylic acid on the Ag/Si(1 1 1)-(√3 × √3)R30° surface has been investigated using scanning tunnelling microscopy (STM), and low energy electron diffraction (LEED). Molecules are found to adsorb at the step edges and defect sites. With increased coverage they diffuse freely to coalesce into ordered close-packed domains. An oblique unit cell is determined and a model proposed for these domains. A missing-molecule defect with short range ordering and a surface modulation with long range order within the domain structure were also investigated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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