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Increase in efficiency for thin-film solar modules: 3D-Micromac launches an innovative production system
Competitive advantage for thin-film manufacturers
Formerly, thin-film modules were structured with a laser or a mechanical unit after each individual layering step, which required expensive cleaning steps, lengthened processing times and led to efficiency losses. Between the layering and structuring steps, modules had to be passed in and out of a vacuum chamber several times. Due to inaccuracies, 200 to 400 micrometre wide "dead zones" formed, which could not be used to produce electricity. The OSP process minimizes these zones to less than 100 micrometres, simplifies manufacturing and increases efficiency. "Our process is a decisive step forward for the entire thin-film photovoltaic industry", explains 3D-Micromac managing director Tino Petsch. "Since the upstream process chain has been significantly simplified, completely new manufacturing concepts are now possible. Thus, the OSP process is a trailblazer for innovative and fully integrated production lines."
For production, 3D-Micromac falls back upon a combined process from laser and printing technology. The company has been successfully using it in other areas of application for years. Wether amorphous silicon, cadmium telluride or CIGS is used, the OPS system can easily be integrated into an existing production line and works on all common formats up to 1.10 by 1.30 metres.
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