Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces
Rubrene (C42H28) was adsorbed with submonolayer coverage on Pt(111), Au(111), and graphene-covered Pt(111). Adsorption phases and vibronic properties of C42H28 consistently reflect the progressive reduction of the molecule–substrate hybridization. Separate C42H28 clusters are observed on Pt(111) as...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2020-08-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.11.100 |
| _version_ | 1818175622132793344 |
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| author | Karl Rothe Alexander Mehler Nicolas Néel Jörg Kröger |
| author_facet | Karl Rothe Alexander Mehler Nicolas Néel Jörg Kröger |
| author_sort | Karl Rothe |
| collection | DOAJ |
| description | Rubrene (C42H28) was adsorbed with submonolayer coverage on Pt(111), Au(111), and graphene-covered Pt(111). Adsorption phases and vibronic properties of C42H28 consistently reflect the progressive reduction of the molecule–substrate hybridization. Separate C42H28 clusters are observed on Pt(111) as well as broad molecular resonances. On Au(111) and graphene-covered Pt(111) compact molecular islands with similar unit cells of the superstructure characterize the adsorption phase. The highest occupied molecular orbital of C42H28 on Au(111) exhibits weak vibronic progression while unoccupied molecular resonances appear with a broad line shape. In contrast, vibronic subbands are present for both frontier orbitals of C42H28 on graphene. They are due to different molecular vibrational quanta with distinct Huang–Rhys factors. |
| first_indexed | 2024-12-11T20:03:13Z |
| format | Article |
| id | doaj.art-27a80076562e4013ad41991e311ba91b |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-11T20:03:13Z |
| publishDate | 2020-08-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-27a80076562e4013ad41991e311ba91b2022-12-22T00:52:28ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862020-08-011111157116710.3762/bjnano.11.1002190-4286-11-100Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfacesKarl Rothe0Alexander Mehler1Nicolas Néel2Jörg Kröger3Institut für Physik, Technische Universität Ilmenau, D-98693 Ilmenau, GermanyInstitut für Physik, Technische Universität Ilmenau, D-98693 Ilmenau, GermanyInstitut für Physik, Technische Universität Ilmenau, D-98693 Ilmenau, GermanyInstitut für Physik, Technische Universität Ilmenau, D-98693 Ilmenau, GermanyRubrene (C42H28) was adsorbed with submonolayer coverage on Pt(111), Au(111), and graphene-covered Pt(111). Adsorption phases and vibronic properties of C42H28 consistently reflect the progressive reduction of the molecule–substrate hybridization. Separate C42H28 clusters are observed on Pt(111) as well as broad molecular resonances. On Au(111) and graphene-covered Pt(111) compact molecular islands with similar unit cells of the superstructure characterize the adsorption phase. The highest occupied molecular orbital of C42H28 on Au(111) exhibits weak vibronic progression while unoccupied molecular resonances appear with a broad line shape. In contrast, vibronic subbands are present for both frontier orbitals of C42H28 on graphene. They are due to different molecular vibrational quanta with distinct Huang–Rhys factors.https://doi.org/10.3762/bjnano.11.100graphenemetal surfacesmolecular superstructuresrubrenescanning tunneling microscopyscanning tunneling spectroscopyvibronic states |
| spellingShingle | Karl Rothe Alexander Mehler Nicolas Néel Jörg Kröger Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces Beilstein Journal of Nanotechnology graphene metal surfaces molecular superstructures rubrene scanning tunneling microscopy scanning tunneling spectroscopy vibronic states |
| title | Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces |
| title_full | Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces |
| title_fullStr | Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces |
| title_full_unstemmed | Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces |
| title_short | Scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene-covered metal surfaces |
| title_sort | scanning tunneling microscopy and spectroscopy of rubrene on clean and graphene covered metal surfaces |
| topic | graphene metal surfaces molecular superstructures rubrene scanning tunneling microscopy scanning tunneling spectroscopy vibronic states |
| url | https://doi.org/10.3762/bjnano.11.100 |
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