Advanced Opto-electrical Characterization of Solar Cells (Energy Harvesting and Storage Europe 2013)

Dr Beat Ruhstaller, CEO
Fluxim AG


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Presentation Summary

Accurate device characterization is essential for research and development of solar cells for any material type or structure. Obtaining reliable material and device parameters is important, since it leads to a better understanding of device operation and the quantification of loss mechanisms.
We present an overview of state-of-the-art experimental techniques and show an approach to extract material and device parameters with a much higher accuracy as exemplified with an organic solar cell. We use analytical and numerical analysis for steady-state and transient experiments to increase the accuracy of the extracted model parameters and to reduce parameter correlation.

Speaker Biography (Beat Ruhstaller)

Beat Ruhstaller is founder and CEO of Fluxim AG and professor at the Institute of Computational Physics at the Zurich University of Applied Sciences. He received his Diploma in Physics from ETH Zurich, a Masters and Ph.D. degree in Physics from the University of California at Santa Cruz, USA, and an Executive MBA from Zurich University of Applied Sciences. During his Ph.D. he developed numerical models for charge transport in organic light-emitting devices in collaboration with the IBM Almaden Research Center, USA. Subsequently he was a postdoctoral researcher at the OLED display technology team at the IBM Zurich Research Laboratory, Switzerland. He has performed research on optical, electronic and thermal processes in light-emitting and light-harvesting thin film semiconductor devices for the last 15 years. He has been a principal investigator in several European research projects and has co-organized several international scientific conferences in the field of organic electronics.

Company Profile (Fluxim AG)

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FLUXiM is provider of device simulation and optimization software to the display, lighting, and photovoltaics industries. We offer user- friendly and CPU-efficient software with advanced physical models as well as prompt technical support. We develop and commercialize the software SETFOS, a software designed to simulate light harvesting in (organic and inorganic) solar cells, light emission from thin-film devices such as organic light-emitting diodes (OLEDs), and electronic processes in organic semiconducting multilayer systems. The software comes with extensive documentation and language support in English, Japanese, Korean and Chinese.
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