Molecular Tools for Non-Planar Surface Chemistry
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| author | Huff, Taleana Blue, Brandon McCallum, Terry Morin, Mathieu Allis, Damian G. Addou, Rafik Barton, Jeremy Bottomley, Adam Cheng, Doreen Ćulum, Nina M. Drew, Michael Enright, Tyler Godfrey, Alan T. K. Groome, Ryan Hill, Aru J. Inayeh, Alex Kennedy, Matthew R. Kirby, Robert J. Krykunov, Mykhaylo Lilak, Sam Ma, Hadiya Mackie, Cameron J. MacLean, Oliver Myall, Jonathan Plumadore, Ryan Powell, Adam Rodriguez, Henry Sandoval, Luis Savoie, Marc Scheffel, Benjamin Taucer, Marco Therien, Denis A. B. Vobornik, Dušan |
| author_facet | Huff, Taleana Blue, Brandon McCallum, Terry Morin, Mathieu Allis, Damian G. Addou, Rafik Barton, Jeremy Bottomley, Adam Cheng, Doreen Ćulum, Nina M. Drew, Michael Enright, Tyler Godfrey, Alan T. K. Groome, Ryan Hill, Aru J. Inayeh, Alex Kennedy, Matthew R. Kirby, Robert J. Krykunov, Mykhaylo Lilak, Sam Ma, Hadiya Mackie, Cameron J. MacLean, Oliver Myall, Jonathan Plumadore, Ryan Powell, Adam Rodriguez, Henry Sandoval, Luis Savoie, Marc Scheffel, Benjamin Taucer, Marco Therien, Denis A. B. Vobornik, Dušan |
| contents | Scanning probe microscopy (SPM) investigations of on-surface chemistry on passivated silicon have only shown in-plane chemical reactions, and studies on bare silicon are limited in facilitating additional reactions post-molecular-attachment. Here, we enable subsequent reactions on Si(100) through selectively adsorbing 3D, silicon-specific "molecular tools". Following an activation step, the molecules present an out-of-plane radical that can function both to donate or accept molecular fragments, thereby enabling applications across multiple scales, e.g., macroscale customizable silicon-carbon coatings or nanoscale tip-mediated mechanosynthesis. Creation of many such molecular tools is enabled by broad molecular design criteria that facilitate reproducibility, surface specificity, and experimental verifiability. These criteria are demonstrated using a model molecular tool tetrakis(iodomethyl)germane ($Ge(CH_{2}I)_{4}$; TIMe-Ge), with experimental validation by SPM and X-ray photoelectron spectroscopy (XPS), and theoretical support by density functional theory (DFT) investigations. With this framework, a broad and diverse range of new molecular engineering capabilities are enabled on silicon. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_16798 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Molecular Tools for Non-Planar Surface Chemistry Huff, Taleana Blue, Brandon McCallum, Terry Morin, Mathieu Allis, Damian G. Addou, Rafik Barton, Jeremy Bottomley, Adam Cheng, Doreen Ćulum, Nina M. Drew, Michael Enright, Tyler Godfrey, Alan T. K. Groome, Ryan Hill, Aru J. Inayeh, Alex Kennedy, Matthew R. Kirby, Robert J. Krykunov, Mykhaylo Lilak, Sam Ma, Hadiya Mackie, Cameron J. MacLean, Oliver Myall, Jonathan Plumadore, Ryan Powell, Adam Rodriguez, Henry Sandoval, Luis Savoie, Marc Scheffel, Benjamin Taucer, Marco Therien, Denis A. B. Vobornik, Dušan Materials Science Mesoscale and Nanoscale Physics Atomic Physics Chemical Physics Scanning probe microscopy (SPM) investigations of on-surface chemistry on passivated silicon have only shown in-plane chemical reactions, and studies on bare silicon are limited in facilitating additional reactions post-molecular-attachment. Here, we enable subsequent reactions on Si(100) through selectively adsorbing 3D, silicon-specific "molecular tools". Following an activation step, the molecules present an out-of-plane radical that can function both to donate or accept molecular fragments, thereby enabling applications across multiple scales, e.g., macroscale customizable silicon-carbon coatings or nanoscale tip-mediated mechanosynthesis. Creation of many such molecular tools is enabled by broad molecular design criteria that facilitate reproducibility, surface specificity, and experimental verifiability. These criteria are demonstrated using a model molecular tool tetrakis(iodomethyl)germane ($Ge(CH_{2}I)_{4}$; TIMe-Ge), with experimental validation by SPM and X-ray photoelectron spectroscopy (XPS), and theoretical support by density functional theory (DFT) investigations. With this framework, a broad and diverse range of new molecular engineering capabilities are enabled on silicon. |
| title | Molecular Tools for Non-Planar Surface Chemistry |
| topic | Materials Science Mesoscale and Nanoscale Physics Atomic Physics Chemical Physics |
| url | https://arxiv.org/abs/2508.16798 |