Ultrafast Dynamics Group
Frédéric Laquai's Group

Novel Spectroscopic Tools

Novel Spectroscopic Tools and Data Analyses Techniques


​                                                     © Group Laquai

Gaining novel insight into the photophysics of solar cells often requires the development of new or the advancement of established spectroscopic techniques and data analyses methods. With respect to transient pump-probe spectroscopy this means developing setups that can cover a wider spectral and dynamic range, acquire data faster and with a better signal-to-noise ratio to allow measurements at low pump fluences. In the last few years my group has developed a home-built TA setup that covers the fs-ms dynamic and Vis-NIR spectral range. Furthermore, we have recently started using soft-modeling data analyses techniques such as multivariate curve resolution (MCR) analysis to separate the experimentally-measured TA data into individual component spectra and dynamics of excited states present in BHJ blends.​


I. A. Howard, H. Mangold, F. Etzold, D. Gehrig and F. Laquaiin: Ultrafast Dynamics in Molecules, Nanostructures and Interfaces (World scientific, 2013).​​