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The InnoModu project is about reducing the silver and lead content of photovoltaic cells and modules and improving light management. The modules and cells of the next generation should save costs in production and protect the environment. With the results from the project, the Austrian industrial partners gain access to even more efficient manufacturing processes and can thus strengthen their competitiveness on the market.

What should be improved

Photovoltaic modules currently consist of cells that are manufactured with paste containing silver. The cells are connected using a lead-containing soldering process. Reducing lead means protecting the environment and reducing silver means saving costs - this is why the developers and researchers have calculated that there will be significant savings in cell production. Another challenge in the production process of solar cells is the shadowing losses. These are created by the metallization network on the front of the cell. In addition, the contact strips are currently being made wider in order to compensate for adjustment inaccuracies - here too there is still potential to reduce shading and thus increase the performance of the modules. In the InnoModu project, the experts are concerned with optimizing the electrical contacting of the cells in the PV module with regard to conductivity and front shading.

Summary objectives of the project

- Drastically reduce the silver content in solar cells

- Almost eliminate lead

- To reduce shadowing through the contact and thus to increase the performance

Project partner

From science:

Project coordinator AIT Austrian Institute of Technology

CTR Carinthian Tech Research

From the industry:



Polytec PT



Energy research for Europe

The project is funded in the SOLAR-ERA.NET program in Austria by the FFG with funds from KLIEN / BMVIT and in Germany by the PTJ with funds from the BMBF.