The German analysis institute ISC Konstanz claims an influence conversion effectivity of 24.12% for the TOPCon again contact (TBC) photo voltaic cell. The researchers say their IBC4EU photo voltaic cell is designed in keeping with the polyZEBRA idea.
The consequence was confirmed by the Institute for Solar Energy Research Hamelin (ISFH) in Germany. “The licensed effectivity of 24.12% turned out to be a lot larger than that obtained by indoor measurement,” mentioned ISC Konstanz researcher Jonathan Linke. pv journal, referring to the uncertified 24.0% consequence introduced by the analysis group in December. “This is the very best achieved photo voltaic cell effectivity ever developed at ISC Konstanz.”
The cell additionally achieved an open-circuit voltage of 709.5 mV, a short-circuit density of 11,355 mA, and a fill issue of 82.04%.
“Considering that the laboratory cell fabrication of normal industrial cells at ISC Konstanz depends totally on handbook wafer dealing with, machines are used for a lot of cell ideas, and that display printing is just obtainable in just a few tenths of cells in a batch, this effectivity is already. “added Linke. “The implementation of polyZEBRA know-how in an automatic manufacturing line is predicted to end in a cell effectivity of greater than 25%. with a decrease value of possession in comparison with present TBC cell ideas, with module effectivity ultimately exceeding 24%.”
The polyZEBRA cell fabrication course of makes use of a novel and low-cost laser-based course of to attain passivating contacts of each polarities and is appropriate for mass manufacturing, in keeping with its creators.
“Now, the ISC staff is optimizing particular person course of steps to additional enhance the efficiencies demonstrated within the laboratory and implementing simplified course of sequences to additional cut back the anticipated value of the longer term line of manufacturing deliberate for 2025,” mentioned Linke. “The improvement of the cell is funded by the European Union’s Horizon Europe analysis and innovation program.”
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