Dresden 2026 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 19: Poster Session

MM 19.32: Poster

Tuesday, March 10, 2026, 18:00–20:00, P5

Exploring Molecular Fragmentation and Structure in PVP Thin Films via Atom Probe Tomography — •Parisha Diwan — University of stuttgart

In this work, spin coating was used to create thin films of polyvinylpyrrolidone (PVP), which were then analysed using atom probe tomography (APT). APT measurements were performed to investigate the polymer at the nanoscale after lift-outs were created and shaped into sharp edges. The mass spectrum identified the primary molecular fragments generated during analysis, and the 3D reconstruction demonstrated the arrangement of various PVP molecule components in the film. These findings show that APT can help us better understand the structure of polymer thin films by providing specific chemical information. This study supports the future application of APT in polymer research and thin-film characterisation by highlighting its potential as a helpful tool for organic material analysis.

Keywords: Polymer; PVP; THIN FILMS; ATOM PROBE TOMOGRAPHY; MASS SPECTRUM