SKM 2023 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 23: Poster II

MM 23.10: Poster

Dienstag, 28. März 2023, 18:15–20:00, P2/OG1+2

Detection of Lithium in potential electrode materials — •Patrick Kirscht and Hans Hofsäss — II Physikalisches Institut, Georg August Universität, Göttingen, Deutschland

Nuclear reaction analysis is used to quantify light elements such as lithium in a sample. The advantage of NRA is the isotope specific measurement of elements in a sample. In the current investigations we demonstrate the detection limits and sensitivity of a new setup for the detection of lithium via its nuclear reaction with protons p(7-Li,alpha)alpha with Q=17MeV. For this purpose an external proton beam with 2.5MeV is used. To determine the detection limit, lithium was implanted into silicon and ta-C near the surface by ultra-low energy ion implantation at 100eV. Furthermore, the depth profile and penetration depth were simulated using Imintdyn and SRIM and were compared with the measurements. For the measurement of diffusivity of lithium, the samples were baked at different temperatures. For comparison, MD simulation was performed using LAMMPS. These investigations are the starting point of measurements on graphene and biological materials like wood, which are considered for possible applications as electrode materials in batteries.