Defects in graphite engineered by ion implantation for the self-assembly of gold nanoparticles
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866910683609694208 |
|---|---|
| author | Liu, Yumeng Deng, Yanhao Wang, Yizhuo Wang, Li Liu, Tong Wei, Wei Gong, Zhongmiao Fan, Zhengfang Su, Zhijuan Wang, Yanming Dan, Yaping |
| author_facet | Liu, Yumeng Deng, Yanhao Wang, Yizhuo Wang, Li Liu, Tong Wei, Wei Gong, Zhongmiao Fan, Zhengfang Su, Zhijuan Wang, Yanming Dan, Yaping |
| contents | Defect engineering in two-dimensional (2D) materials is essential for advancing applications such as gas sensing, single-atom catalysis, and guided nanoparticle self-assembly, enabling the creation of materials with tailored functionalities. This study investigates ion implantation effects on highly ordered pyrolytic graphite (HOPG) surfaces, using scanning tunneling microscopy (STM) and density functional theory (DFT) simulations to identify distinct defect structures. High-energy heavy ions cause inelastic scattering, increasing surface damage, while gold atoms deposited onto defect sites preferentially form atomic clusters. Through focused ion beam techniques, spatially distributed defects were engineered, guiding the self-assembly of nanoparticles. This research highlights the precision of ion irradiation for modifying HOPG surfaces, with significant implications for catalysis, nanotechnology, and the development of functional materials with controlled nanoscale properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_02204 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Defects in graphite engineered by ion implantation for the self-assembly of gold nanoparticles Liu, Yumeng Deng, Yanhao Wang, Yizhuo Wang, Li Liu, Tong Wei, Wei Gong, Zhongmiao Fan, Zhengfang Su, Zhijuan Wang, Yanming Dan, Yaping Materials Science Mesoscale and Nanoscale Physics Defect engineering in two-dimensional (2D) materials is essential for advancing applications such as gas sensing, single-atom catalysis, and guided nanoparticle self-assembly, enabling the creation of materials with tailored functionalities. This study investigates ion implantation effects on highly ordered pyrolytic graphite (HOPG) surfaces, using scanning tunneling microscopy (STM) and density functional theory (DFT) simulations to identify distinct defect structures. High-energy heavy ions cause inelastic scattering, increasing surface damage, while gold atoms deposited onto defect sites preferentially form atomic clusters. Through focused ion beam techniques, spatially distributed defects were engineered, guiding the self-assembly of nanoparticles. This research highlights the precision of ion irradiation for modifying HOPG surfaces, with significant implications for catalysis, nanotechnology, and the development of functional materials with controlled nanoscale properties. |
| title | Defects in graphite engineered by ion implantation for the self-assembly of gold nanoparticles |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.02204 |