A versatile setup for studying size and charge-state selected polyanionic nanoparticles
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866917697468497920 |
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| author | Raspe, K. Müller, M. Iwe, N. Wolf, R. N. Oelßner, P. Martinez, F. Schweikhard, L. Meiwes-Broer, K. -H. Tiggesbäumker, J. |
| author_facet | Raspe, K. Müller, M. Iwe, N. Wolf, R. N. Oelßner, P. Martinez, F. Schweikhard, L. Meiwes-Broer, K. -H. Tiggesbäumker, J. |
| contents | Using the example of metal clusters, an experimental setup and procedure is presented, which allows for the generation of size and charge-state selected polyanions from monoanions in a molecular beam. As a characteristic feature of this modular setup, the further charging process via sequential electron attachment within a 3-state digital trap takes place after mass-selection. In contrast to other approaches, the rf based concept permits to access heavy particles. The procedure is highly flexible with respect to the preparation process and potentially suitable for a wide variety of anionic species. By adjusting the storage conditions, i.e., the radio frequency, to the change in the mass-to-charge ratio, we succeeded to produce clusters in highly negative charge states, i.e., Ag$_{800}^{7-}$. The capabilities of the setup are demonstrated by experiments extracting electronic and optical properties of polyanionic metal clusters by analyzing the corresponding photoelectron spectra. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2201_06356 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | A versatile setup for studying size and charge-state selected polyanionic nanoparticles Raspe, K. Müller, M. Iwe, N. Wolf, R. N. Oelßner, P. Martinez, F. Schweikhard, L. Meiwes-Broer, K. -H. Tiggesbäumker, J. Atomic and Molecular Clusters Using the example of metal clusters, an experimental setup and procedure is presented, which allows for the generation of size and charge-state selected polyanions from monoanions in a molecular beam. As a characteristic feature of this modular setup, the further charging process via sequential electron attachment within a 3-state digital trap takes place after mass-selection. In contrast to other approaches, the rf based concept permits to access heavy particles. The procedure is highly flexible with respect to the preparation process and potentially suitable for a wide variety of anionic species. By adjusting the storage conditions, i.e., the radio frequency, to the change in the mass-to-charge ratio, we succeeded to produce clusters in highly negative charge states, i.e., Ag$_{800}^{7-}$. The capabilities of the setup are demonstrated by experiments extracting electronic and optical properties of polyanionic metal clusters by analyzing the corresponding photoelectron spectra. |
| title | A versatile setup for studying size and charge-state selected polyanionic nanoparticles |
| topic | Atomic and Molecular Clusters |
| url | https://arxiv.org/abs/2201.06356 |