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Nov 26th, 2013
ZSW achieves 10.3% efficiency with Kesterite absorber material
Scientists in Stuttgart had a breakthrough in their search for more advantageous materials and processes in the manufacture of efficient thin-film solar cells.
The Kesterite solar cells were developed at the Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (Centre for Solar Energy and Hydrogen Research Baden-Württemberg, ZSW) in collaboration with researchers at the Karlsruhe Institute for Technology (KIT).
A team of researchers at the Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (Centre for Solar Energy and Hydrogen Research Baden-Württemberg, ZSW) has developed a simplified production process for Kesterite thin-film solar cells. The absorber layer of the new cells contains tin and zinc, two readily available and inexpensive materials. The top-performing cell reaches an efficiency of 10.3% – a new European record.The Stuttgart-based research institute broke through the 10-percent efficiency threshold for Kesterite solar cells in October. The new value is close to the US world record of 11.1% - that cell, however, was manufactured in a more complicated process. At 0.5 square centimetres, the ZSW solar cell has the standard experimental cell size.
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