cfaed Seminar Series
Prof. Elizabeth von Hauff , Fraunhofer FEP // TU Dresden
In-situ tools for energy conversion and sensing – new directions in Dresden
, 15:00 - 16:00
Host: Prof. Yana Vaynzof , Zoom (details below)
Functional interfaces are at the heart of energy conversion and sensing. In this talk I will give an overview of previous work from my group at the VU Amsterdam in applying spectroscopic tools [1-3] to study the properties of interfaces in emerging photovoltaics. More recently we have extended our work to design a new approach that couples impedance spectroscopy with vibrational spectroscopy to monitor temperature in disordered organic semiconductors. In this case, we exploit the temperature-dependent Raman shifts in the finger print regime to quantify self-heating in polymer diodes and measure the temperature at the surface of optically excited plasmonic particles. As an outlook, I will introduce the activities at the Fraunhofer FEP and future directions for potential cooperation between FEP and the TU Dresden.
 E. von Hauff, Impedance Spectroscopy for Emerging Photovoltaics, J. Phys. Chem C, 123 (2019) 11329.
 E. M. Hutter, T. Kirchartz, B. Ehrler, D. Cahen, E. von Hauff, Pitfalls and prospects of optical spectroscopy to characterize perovskite-transport layer interfaces, Appl. Phys. Lett. Perspective, 116 (2020) 100501.
 D. Klotz and E. von Hauff, Impedance Spectroscopy for Perovskite Solar Cells: Characterization, Analysis, and Diagnosis, submitted
Meeting ID: 886 4410 0112