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  • Start: 01/04/2021 End: 30/12/2022
  • Partners: MATEPRINCS and CENER

Summary: This project aims to develop advanced metallic inks for the photovoltaic solar cell sector of standard crystalline silicon technology. It starts by developing advanced inks based on silver particles, commonly used in the photovoltaic industry, but with an advanced formulation that incorporates silver-coated silica particles instead of glass frit in order to improve the contact between the ink and the silicon. In addition, a titanium-based conductive ink will be developed, optimised to be deposited by screen printing, as a technological advance in the sector, which according to current trends is demanding the replacement of metals such as silver due to its high cost. The most important differentiating aspect, which represents a milestone in the development of conductive inks for the photovoltaic industry, lies in this case in the substitution of silver. In addition to this, innovative methods will be used to deposit the ink on the silicon wafers, such as spraying and LIFT (Laser Induced Forward Transfer), which provide versatility, flexibility and avoid contact. In this way, the TITAN-PV project advances in the development of this silver substitute material towards an industrialisable concept based on screen-printing deposition, which is the standard technique in the photovoltaic industry. This advance will lead to the development of a new concept of front metallisation of photovoltaic cells based on a silicon-titanium alloy to replace silver, which substantially increases the final price of photovoltaic modules.

In this project, CENER will work on the development of the inks, contributing its experience in photovoltaics and optimising the deposition processes by means of screen printing and LIFT for these new pastes and evaluating their performance as a front electrode in photovoltaic solar cells.

“This company/organisation has received a grant co-financed 50% by the Government of Navarra and the European Regional Development Fund through Navarra’s ERDF Operational Programme 2014-2020”

 

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