HyPerCells - Hybrid Perovskite Solar Cells


A joint graduate school of Helmholtz-Zentrum Berlin and University of Potsdam under the direction of

Prof. Dr. Dieter Neher (Unversity of Potsdam) and Dr. Thomas Unold (Helmholtz-Zentrum Berlin).

News


21.4 % Record Efficiency Realised

 

Perovskite solar cells with record efficiencies of over 20 per cent have been realised by Christian Wolff and Martin Stolterfoht. Following their publication in the journal Energy & Environmental Science they were able to push the solar cell performance up to 21.4 % power conversion efficiency which is the highest value reported so far for "inverted" perovskite solar cells with undoped contact layers.

Cross section scanning electron microscopy image of the record solar cell. A 350 nm thick perovskite film is embedded between undoped organic contact layers of the fullerene C60 and the polymer PTAA.
Cross section scanning electron microscopy image of the record solar cell. A 350 nm thick perovskite film is embedded between undoped organic contact layers of the fullerene C60 and the polymer PTAA.
Current-voltage characteristics and maximum power point track measurements of the record efficiency solar cell showing a stabilized power conversion efficiency of 21.4 %.
Current-voltage characteristics and maximum power point track measurements of the record efficiency solar cell showing a stabilized power conversion efficiency of 21.4 %.

July 2017

Christian Wolff wins poster prize at PSCO conference in Genova

Christian Wolff is awarded with the Nature poster prize for best multidisciplinary presentation on the 2nd international conference "Perovkite Solar Cells and Optoelectronics" (PSCO) in Genova, September 2016. The results presented in his poster have recently been published in the journal Advanced Materials.

September 2016

Scope


This Graduate School aims at achieving a fundamental understanding of the material properties and physical processes in organometallic perovskites used for photovoltaic energy conversion. A close collaboration of synthesis, quantum chemistry and physics research groups at the Universität Potsdam, the Max-Planck-Institut für Kolloid- und Grenzflächenforschung and the Helmholtz Zentrum Berlin is intended to lay the foundation for the use of perovskites in tandem solar cells.  The work program is designed for a period of 3.5 years and will include about 16 PhD students, out of which 8 will be funded by the graduate school and 8 will be funded from other sources. As of now, all positions have been assigned.

Training Program


Research on perovskite solar cells is highly interdisciplinary. Therefore, the school will provide the PhD students with comprehensive knowledge and understanding of the chemistry and physics of perovskite-based tandem devices. This program comprises lectures, lab-courses, workshops and seminar, offered by renowned specialists in their respective field. The research-based training will be supplemented by measures to support the provision of key competences, under the guidance of the Potsdam Graduate School (PoGS) of the UP.