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| Autori principali: | , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2409.05489 |
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| _version_ | 1866929492315865088 |
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| author | Au-Yeung, Kwan Ho Sarkar, Suchetana Haldar, Sattwick Das, Pranjit Kühne, Tim Ryndyk, Dmitry A. Bhauriyal, Preeti Kaskel, Stefan Heine, Thomas Cuniberti, Gianaurelio Schneemann, Andreas Moresco, Francesca |
| author_facet | Au-Yeung, Kwan Ho Sarkar, Suchetana Haldar, Sattwick Das, Pranjit Kühne, Tim Ryndyk, Dmitry A. Bhauriyal, Preeti Kaskel, Stefan Heine, Thomas Cuniberti, Gianaurelio Schneemann, Andreas Moresco, Francesca |
| contents | Non-planar aromatic molecules are interesting systems for organic electronics and optoelectronics applications due to their high stability and electronic properties. By using scanning tunneling microscopy and spectroscopy, we investigated thianthrene-based molecules adsorbed on Au(111), which are non-planar in the gas phase and the bulk solid state. Varying the molecular coverage leads to the formation of two different kinds of self-assembled structures: close-packed islands and quasi one-dimensional chains. We found that the molecules are non-planar within the close-packed islands, while the configuration is planar in the molecular chain and for single adsorbed molecules. Using vertical tip manipulation to isolate a molecule from the island, we demonstrate the conversion of a non-planar molecule to its planar configuration. We discuss the two different geometries and their electronic properties with the support of density functional theory calculations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_05489 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tuning the Planarity of an Aromatic Thianthrene-Based Molecule on Au(111) Au-Yeung, Kwan Ho Sarkar, Suchetana Haldar, Sattwick Das, Pranjit Kühne, Tim Ryndyk, Dmitry A. Bhauriyal, Preeti Kaskel, Stefan Heine, Thomas Cuniberti, Gianaurelio Schneemann, Andreas Moresco, Francesca Materials Science Non-planar aromatic molecules are interesting systems for organic electronics and optoelectronics applications due to their high stability and electronic properties. By using scanning tunneling microscopy and spectroscopy, we investigated thianthrene-based molecules adsorbed on Au(111), which are non-planar in the gas phase and the bulk solid state. Varying the molecular coverage leads to the formation of two different kinds of self-assembled structures: close-packed islands and quasi one-dimensional chains. We found that the molecules are non-planar within the close-packed islands, while the configuration is planar in the molecular chain and for single adsorbed molecules. Using vertical tip manipulation to isolate a molecule from the island, we demonstrate the conversion of a non-planar molecule to its planar configuration. We discuss the two different geometries and their electronic properties with the support of density functional theory calculations. |
| title | Tuning the Planarity of an Aromatic Thianthrene-Based Molecule on Au(111) |
| topic | Materials Science |
| url | https://arxiv.org/abs/2409.05489 |