About us

QYB – Quantum Yield Berlin GmbH is a Berlin based spin-off company of the Helmholtz-Zentrum Berlin founded in early 2021. Our mission is making absolute luminescence analysis of semiconductors easily accessible for everyone. From 2018 on, we’ve started integrating our expertise in absolute photo- & electroluminescence measurements into a compact measurement system to bring this technology ready-to-use to other labs. After three years of development and fine-tuning, we’ve launched the LuQY Pro in summer 2021. Less than one year later, we have sold and delivered more than half a dozen systems worldwide, have established a manufacturing site and hired staff.

Get in contact with us

Team

Amran Al-Ashouri
Amran Al-Ashouri
Aboma Merdasa
Aboma Merdasa
Steve Albrecht
Steve Albrecht
Thomas Unold
Thomas Unold
José A. Márquez
José A. Márquez
Lukas Kegelmann
Lukas Kegelmann

Advisory Board

Eva Unger
Eva Unger
Christian M. Wolff
Christian M. Wolff
Pietro Caprioglio
Pietro Caprioglio
Martin Stolterfoht
Martin Stolterfoht
Dieter Neher
Dieter Neher

Our team with our excellent advisory board is a multi-disciplinary group of researchers from the Helmholtz-Zentrum Berlin, the Potsdam University, the École Polytechnique Fédérale de Lausanne and the University of Oxford (PIs, Postdocs & PhD students). In this unique constellation, we combine exceptional expertise in:

  • Perovskite based tandem solar cells
  • Advanced spectroscopy on perovskite films and devices
  • Absolute photo- & electroluminescence measurements (recombination loss analysis)

We have been frequently using and promoting absolute luminescence measurements throughout recent years. The method enormousely helped us to develop efficient solar cell materials and greatly accelerated the device development. In fact, absolute luminescence measurements were the key characterization technique enabling us to realize a world record certified perovskite/silicon tandem solar cell efficiency of 29.15% in January 2020 (also see Al-Ashouri et al., Science 2020)