Dresden 2017 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 8: Fundamentals of Perovskite Photovoltaics II (joint session CPP/DS/HL)

CPP 8.6: Vortrag

Montag, 20. März 2017, 17:15–17:30, ZEU 222

Characterization of perovskite solar cells: Towards a reliable measurement protocol — •Eugen Zimmermann1, Ka Kan Wong1, Michael Müller1, Hao Hu1, Philipp Ehrenreich1, Markus Kohlstädt2,3, Uli Würfel2,3, Simone Mastroianni2, Gayathri Mathiazhagan2, Andreas Hinsch2, Tanaji P. Gujar4, Mukundan Thelakkat4, Thomas Pfadler1, and Lukas Schmidt-Mende11Universität Konstanz, Konstanz, Germany — 2Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany — 3Freiburg Materials Research Center FMF, University of Freiburg, Freiburg, Germany — 4Applied Functional Polymers, Department of Macromolecular Chemistry I, University of Bayreuth, Bayreuth, Germany

Tremendous progress on power conversion efficiency of lead halide perovskite solar cells during the last few years drastically increased the interest in research on this material. However, a so called "hysteretic" behaviour during current density-voltage (J-V) measurements is differently severe for differently prepared solar cells and strongly depends on scan parameters like scan rate, and measurement history. This challenges reliable results across different laboratories and hinders the aspect of commercialization. Here, we propose a reliable measurement protocol by introducing stabilized device characteristics obtained from an adaptive tracking of the maximum power point and the open circuit voltage, and compare such obtained values to device characteristics derived from standard and time resolved J-V measurements for varying solar cells fabricated in different laboratories.

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