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DuPont: PV Metalization for Flexible Solar Substrates
Material for PV substrates.
Bristol, UK — DuPont Microcircuit Materials (MCM) has introduced the low temperature processing DuPont Solamet® PV414 photovoltaic (PV) metallization paste designed for rotary screen printing, to enable high speed roll-to-roll processing of thin and flexible solar cells and modules. The new offering was recently qualified at Flexcell, a Swiss producer of flexible amorphous silicon thin film modules for building integrated photovoltaics (BIPV) and mobile solar chargers.

Solamet photovoltaic metallization pastes are key to higher efficiency and lower system costs for both crystalline silicon (c-Si) and thin film PV. The new PV metallization paste enables Flexcell thin film PV modules.

According to the company, roll-to-roll processing can offer huge productivity benefits to thin film photovoltaic module manufacturers.

Metallization pastes must be carefully adapted for rotary screen printing on thin film substrates to ensure material, and therefore cost, is not wasted and high efficiency is maintained.

Standard metallization pastes do not typically perform well with rotary screen printing, so DuPont put its science to work to utilize the performance characteristics of the latest thin film metallization chemistry platform, Solamet PV41x, and optimize it for this novel laydown technology. The extensive development work resulted in the formulation of Solamet PV414 for rotary printing.

The material is engineered to ensure superior printability and line resolution while maintaining excellent adhesion to the Transparent Conductive Oxide (TCO) layer, very low contact resistance and outstanding conductivity. Additional products in the family are adaptable to Copper Indium Gallium Selenide (CIGS), Cadmium Telluride (CdTe), Silicon Heterojunction (SHJ), Dye Sensitized Cells (DSC) and Organic Photovoltaic (OPV) technologies.

Contact: DuPont Circuit & Packaging Materials, 14TW Alexander Drive, Research Triangle Park, NC 27709 800-243-2143 fax: 570-268-3699 Web:
http://mcm.dupont.com


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