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For studying proteins, a new method has been developed by scientists at Martin Luther University Halle-Wittenberg (MLU) and the European Molecular Biology Laboratory in Hamburg. ....
Solar cells: Layer of three crystals produces a thousand times more power The photovoltaic effect of ferroelectric crystals can be increased by a factor of 1,000 if three different materials are arranged periodically in a lattice. This has been revealed in a study by researchers at Martin Luther University Halle-Wittenberg (MLU). They achieved this by creating crystalline layers of barium titanate, strontium titanate and calcium titanate which they alternately placed on top of one another. Their findings, which could significantly increase the efficiency of solar cells, were published in the journal “Science Advances”. Most solar cells are currently silicon based; however, their efficiency is limited. This has prompted researchers to examine new materials, such as ferroelectrics like barium titanate, a mixed oxide made of barium and titanium. “Ferroelectric means that the material has spatially separated positive and negative charge ....
Solar cells: Layer of three crystals produces a thousand times more power
The result surprised even the research group
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The photovoltaic effect of ferroelectric crystals can be increased by a factor of 1,000 if three different materials are arranged per ....