European project for thin film Kesterite Solar cells has reached its goals

<span class="st">&nbsp;</span>

 

Eleven partners from different countries have joined forces in the EU-research project KESTCELLS from September 2012 until 31. August 2016. The mission was to train a new generation of experts and to increase the efficiencies of Kesterite solar cells. Now, at the end of the project, these goals have been perfectly reached.

Fourteen young scientists have become experts in the field and the cooperation managed to increase the efficiencies of Kesterite solar cells up to 11.8 %. This is even more than the 10 % threshold fixed as initial objective. HZB-scientists Iver Lauermann, Susan Schorr and Thomas Unold have been participating in the KESTCELLS-Project as Principal Investigators. The project was funded with 3.7 Million Euros by the European Union.


More information: http://kestcells.eu/

Background-Information:
In 2012 the European Commission identified a significant lack of academic institutions in Europe able to train new researchers in the field of thin based solar cells based on earth abundant materials. Being aware of this, the Research Executive Agency (REA) funded KESTCELLS with 3.7M€ to develop an ambitious program for training 14 researchers in 11 different institutions covering from Research Centers and Universities to Industries all around Europe.

For four years the partners of this ITN-network have worked with a double objective; in first place making a significant advance in the kesterite research of Thin-Film PV technologies. This field offers a set of advantages such as a low consumption of raw materials, development of highly automated and efficient manufacturing processes, low carbon footprint and better performances at elevated temperatures than the standard counterparts. Actually, it is expected that these technologies will lead PV research in the next years.

Secondly, the project has trained 12 PhD students and 2 experienced researchers recruited among more than three hundred candidates all around the world 

All in all, the project has allowed publishing more than fifty papers in peer review articles, and supported 6 Theses. From a scientific point of view, it has also made a significant step forward in the characterization of fundamental properties of kesterites that will allow understanding the main challenges on these materials and a contribution to a strategy to overcome them in the mid-term.

In fact, the design and development of new kesterite based solar cells with an efficiency of 11.8% has been achieved, which is beyond the 10% threshold fixed as initial objective of the project.  The project has contributed to the competitiveness of the European PV Industry, helping to increase the production of energy through renewable sources according to the 20/20/20 target established by the European Commission and the SET-Plan.

This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no [316488]. Sole responsibility lies with the authors and the European Commission is not responsible for any use that may be made of the information contained therein.

red.

  • Copy link

You might also be interested in

  • Element cobalt exhibits surprising properties
    Science Highlight
    11.02.2026
    Element cobalt exhibits surprising properties
    The element cobalt is considered a typical ferromagnet with no further secrets. However, an international team led by HZB researcher Dr. Jaime Sánchez-Barriga has now uncovered complex topological features in its electronic structure. Spin-resolved measurements of the band structure (spin-ARPES) at BESSY II revealed entangled energy bands that cross each other along extended paths in specific crystallographic directions, even at room temperature. As a result, cobalt can be considered as a highly tunable and unexpectedly rich topological platform, opening new perspectives for exploiting magnetic topological states in future information technologies.
  • MXene for energy storage: More versatile than expected
    Science Highlight
    03.02.2026
    MXene for energy storage: More versatile than expected
    MXene materials are promising candidates for a new energy storage technology. However, the processes by which the charge storage takes place were not yet fully understood. A team at HZB has examined, for the first time, individual MXene flakes to explore these processes in detail. Using the in situ Scanning transmission X-ray microscope 'MYSTIIC' at BESSY II, the scientists mapped the chemical states of Titanium atoms on the MXene flake surfaces. The results revealed two distinct redox reactions, depending on the electrolyte. This lays the groundwork for understanding charge transfer processes at the nanoscale and provides a basis for future research aimed at optimising pseudocapacitive energy storage devices.
  • Bernd Rech elected to the BR50 Board of Directors
    News
    30.01.2026
    Bernd Rech elected to the BR50 Board of Directors
    The Scientific Director at Helmholt-Zentrum Berlin is the new face behind the "Natural Sciences" unit at Berlin Research 50 (BR50). Following the election in December 2025, the constituent meeting of the new BR50 Board of Directors took place on 22 January 2026.

    Its members are Michael Hintermüller (Weierstrass Institute, WIAS), Noa K. Ha (German Centre for Integration and Migration Research, DeZIM), Volker Haucke (Leibniz Research Institute for Molecular Pharmacology, FMP), Uta Bielfeldt (German Rheumatism Research Centre Berlin, DRFZ) and Bernd Rech (HZB).