Tracking Surface Charge Dynamics on Single Nanoparticles
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| author | Dagar, Ritika Zhang, Wenbin Rosenberger, Philipp Linker, Thomas M. Sousa-Castillo, Ana Neuhaus, Marcel Mitra, Sambit Biswas, Shubhadeep Feinberg, Alexandra Summers, Adam M. Nakano, Aiichiro Vashishta, Priya Shimojo, Fuyuki Wu, Jian Vera, Cesar Costa Maier, Stefan A. Cortés, Emiliano Bergues, Boris Kling, Matthias F. |
| author_facet | Dagar, Ritika Zhang, Wenbin Rosenberger, Philipp Linker, Thomas M. Sousa-Castillo, Ana Neuhaus, Marcel Mitra, Sambit Biswas, Shubhadeep Feinberg, Alexandra Summers, Adam M. Nakano, Aiichiro Vashishta, Priya Shimojo, Fuyuki Wu, Jian Vera, Cesar Costa Maier, Stefan A. Cortés, Emiliano Bergues, Boris Kling, Matthias F. |
| contents | Surface charges play a fundamental role in physics and chemistry, particularly in shaping the catalytic properties of nanomaterials. Tracking nanoscale surface charge dynamics remains challenging due to the involved length and time scales. Here, we demonstrate real-time access to the nanoscale charge dynamics on dielectric nanoparticles employing reaction nanoscopy. We present a four-dimensional visualization of the non-linear charge dynamics on strong-field irradiated single SiO$_2$ nanoparticles with femtosecond-nanometer resolution and reveal how surface charges affect surface molecular bonding with quantum dynamical simulations. We performed semi-classical simulations to uncover the roles of diffusion and charge loss in the surface charge redistribution process. Understanding nanoscale surface charge dynamics and its influence on chemical bonding on a single nanoparticle level unlocks an increased ability to address global needs in renewable energy and advanced healthcare. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_02621 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tracking Surface Charge Dynamics on Single Nanoparticles Dagar, Ritika Zhang, Wenbin Rosenberger, Philipp Linker, Thomas M. Sousa-Castillo, Ana Neuhaus, Marcel Mitra, Sambit Biswas, Shubhadeep Feinberg, Alexandra Summers, Adam M. Nakano, Aiichiro Vashishta, Priya Shimojo, Fuyuki Wu, Jian Vera, Cesar Costa Maier, Stefan A. Cortés, Emiliano Bergues, Boris Kling, Matthias F. Mesoscale and Nanoscale Physics Atomic and Molecular Clusters Chemical Physics Surface charges play a fundamental role in physics and chemistry, particularly in shaping the catalytic properties of nanomaterials. Tracking nanoscale surface charge dynamics remains challenging due to the involved length and time scales. Here, we demonstrate real-time access to the nanoscale charge dynamics on dielectric nanoparticles employing reaction nanoscopy. We present a four-dimensional visualization of the non-linear charge dynamics on strong-field irradiated single SiO$_2$ nanoparticles with femtosecond-nanometer resolution and reveal how surface charges affect surface molecular bonding with quantum dynamical simulations. We performed semi-classical simulations to uncover the roles of diffusion and charge loss in the surface charge redistribution process. Understanding nanoscale surface charge dynamics and its influence on chemical bonding on a single nanoparticle level unlocks an increased ability to address global needs in renewable energy and advanced healthcare. |
| title | Tracking Surface Charge Dynamics on Single Nanoparticles |
| topic | Mesoscale and Nanoscale Physics Atomic and Molecular Clusters Chemical Physics |
| url | https://arxiv.org/abs/2401.02621 |