Dresden 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
O: Fachverband Oberflächenphysik
O 19: Vacuum Science & Technology: Theory and Applications – Poster
O 19.9: Poster
Monday, March 9, 2026, 18:00–20:00, P2
New Electrospray Ion Beam Deposition source for wellcontrolled STM sample preparation — •Niclas Przibylla1, Markus Etzkorn1, Stephan Rauschenbach2, and Uta Schlickum1 — 1Institute of Applied Physics, TU Braunschweig, Braunschweig — 2Kavli Institute for Nanoscience Discovery, University of Oxford, United Kingdom
High resolution imaging of complex biomolecules such as peptides, glycans, and photosynthesis building blocks are crucial for advancing their fundamental functionalities and exploring them for quantum technologies, Scanning probe microscopy techniques together with mass-selected electrospray ion beam deposition enable atomic-level structural characterization of these molecules. This project deploys a novel electrospray ion beam deposition (ESIBD) system with Python-based programmable control for depositing non-volatile molecules onto clean surfaces under ultra-high vacuum conditions. The process involves electrospray ionization, mass-to-charge filtering via quadrupole ion guides, and electrostatic focusing onto nitrogen-cooled samples. Key innovations include a modular chamber architecture allowing future expansion, alongside RF-operation using rectangular voltage waves for enhanced mass filtering precision. Frequency-asymmetric and amplitude-asymmetric waveforms will enable systematic investigation of ion stability diagram effects, advancing deposition control capabilities.
Keywords: ESIBD; STM; RF-Modulation; Mass-Filtering; Single Photon Source