Methods for bonding flexible PV cells to fabric

Specialty Fabrics Review | January 2010

Architects and FTL Solar co-founders Todd Dalland and Robert Lerner explain some of the innovative methods they’re exploring for bonding thin-film flexible photovoltaic (PV) cells to fabric:

Lamination. Adhesives activatedÊby light, heat, moisture, temperature, pressureÊor a combination for a period of time create the bond. This processÊuses a flat-bed vacuum laminator or a roll-to-roll laminator.

Painting. A four-coat PV paint (comprising an undercoat, a layer of dye-sensitized solar cells, a layer of electrolyte or titanium dioxide as white paint pigment and finally, a protective film) can be applied to materials.

Mechanical. Grommets and rope, Velcro®, flexible magnets, rivets, and staples can connect PV cells to textiles.

Weaving. Flexible PV fibers (zinc-oxide nanostructures grown on opticalÊfibersÊand coated with dye-sensitized solarÊcell materials) are being developed that can be woven into PV cloth.

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