The future of BESSY
This is what the successor source BESSY III could look like in the future. © Rendering: HZB
At the end of February 2024, a team at HZB published an article in Synchrotron Radiation News (SRN). They describe the next development goals for the light source as well as the BESSY II+ upgrade programme and the successor source BESSY III.
In autumn 2023, HZB celebrated 25 years of research at the BESSY II light source in Berlin-Adlershof. To continue offering scientists from all over the world the best research opportunities in the coming decades, it is important to have a vision for BESSY II. In addition, many light sources around the world are currently being modernised or even newly built to keep up with the latest research questions and contribute with state-of-the art research infrastructures.
The article "Material Discovery at BESSY" shows the relevance of BESSY light source for the research questions of the future. The HZB team describes the goals of the BESSY II+ upgrade programme. Among other things, the programme aims to expand operando techniques that are of great benefit in developing materials for the energy transition.
BESSY II+ is a bridge between BESSY II and the successor source BESSY III, which is scheduled to go into operation in the mid-2030s. It is set to become the "materials discovery machine": a combination of the extremely bright, soft 4th generation light source, the integrated research campus in Berlin-Adlershof and the quantitative measurement capabilities of the national metrology institute (PTB, Physikalisch-Technische Bundesanstalt) from synchrotron research.
The article has been published in open access and can be read in the journal SRN, which specialises in synchrotron research.
DOI: https://doi.org/10.1080/08940886.2024.2312051
- BESSY II: High-resolution insights into individual biomolecules and catalystsVery small biological samples and even individual biomolecules can now be examined under near-physiological conditions with high confidence at the BESSY II infrared beamline with a newly validated and improved technique: The nanoscale infrared spectroscopy (s-SNOM) with ultra-thin silicon-based membranes. An international team demonstrated after an initial proof of concept, that high-resolution (a few tens of nanometres) nano-IR measurements reliably match expected far-field IR spectra in an aqueous environment. This methodological advance provides a solid foundation for studying biomaterials or observing catalytic processes in a liquid environment.
- New method shows how molecular switches are influenced by their neighborsResearchers at Friedrich Schiller University Jena and the Helmholtz Centre Berlin (HZB) have, for the first time, been able to directly observe how the environment surrounding a molecular switch influences its electronic structure. Molecular switches are molecules that can be switched between two states by external influences such as changes in temperature—similar to a switch with the positions »On« and »Off«. Such molecules are being investigated as potential building blocks for future data storage devices or sensor materials. Using magnetic-field-dependent terahertz spectroscopy, the researchers have now, for the first time, been able to distinguish whether neighbouring molecules in a material are in the same or different states. The results have been published in the journal »Angewandte Chemie International Edition«.
- BESSY II is back in operation after maintenance shutdownOn 7 September 2026, BESSY II was set into operation after a four-week shutdown. BESSY II is scheduled to resume full user operation on 22 September.