HighPERC - Highly efficient PERC solar cells with production-suitable rear side

The “Passivated Emitter and Rear Cell” (PERC) technology is currently being introduced globally into mass production, as it yields energy conversion efficiencies above 21% at only slightly higher costs. The aim of the HighPERC project is to develop a high-quality, partly laboratory-type baseline PERC process at ISFH that yields efficiencies up to 22% and can be used as a benchmark or development platform for industrial processes. In addition, ISFH will support a number of tool manufacturers with process and tool development:

  • Improvement of the polishing and AlOx/SiN passivation of the rear side of PERC solar cells in cooperation with SINGULUS TECHNOLOGIES AG.
  • Development of new laser processes and tools for laser contact opening at the rear side of PERC solar cells in cooperation with LPKF SolarQuipment GmbH.
  • Evaluation and development of ultra-fine Ag front side contacts using innovative screen-printing technology in cooperation with ASM AE.

At the end of the project, all new production processes will be combined to demonstrate an industrial process sequence for PERC solar cells that yields efficiencies of at least 21.5%.


Partners
SINGULUS TECHNOLOGIES AG, LPKF SolarQuipment GmbH, ASM Alternative Energy (formerly DEK Printing Machines GmbH)


Duration of the project
01.09.2014 – 31.08.2017


Funding
The project is funded by the Federal Ministry for Economic Affairs and Energy under grant no 0324040. The responsibility for the content of this publication lies with the authors.

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