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Two 30x30 cm2 Reference Lines for Thin-Film Silicon (a-Si/μc-Si) and CIS

There is a large gap between production of lab-sized photovoltaic cells and industrial-size modules. PVcomB bridges this gap by operating two dedicated pilot-lines for intermediate size PV modules with an area of 30 x 30 cm². This intermediate module size is well suited to address questions arising in industrial production. At the same time, alternatives will be developed and tested for each process and analytical step. The great variety of analytical tools available ensures that changes in the product-performance can be linked to fundamental material or process properties. A truly unique feature of PVcomB´s pilot-lines is that both thin-film silicon as well as CIGS based modules will be studied within a single laboratory. This convenient arrangement offers the potential to unlock significant synergies in many topics common to all thin-film based technologies.

enlarged view

Principal elements of thin-film module production, which is established as 30 x 30 cm2 pilot production at the PvcomB; ‚p‘-steps are structuring (e.g. with laser)

A 6-inch Silicon Heterojunction Solar cell Baseline

Due to a high silicon wafer quality and the excellent surface passivation Silicon heterojunction (SHJ) solar cells reach very high conversion efficiencies with highest open circuit voltages and low temperature coefficient. At PVcomB we operate a baseline for SHJ solar cells currently reaching a certified efficiency of 22.5%. Partially in cooperation with industry partners, we develop processes and materials up to a cell size of 5- and 6-inch.

What we offer:

  • Ramp up support
  • Continuous development of industrial processes
  • Development of promising high-risk concepts
  • Upscaling of succesful basic research projects of HZB and TU Berlin to module size of 30 x 30 cm2
  • Use of PVcomB reference production lines as benchmark for PV suppliers: new materials, analytical tools or alternative process steps