06.30.17
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll processed large area flexible OLED during a joint project.
Sefar developed high conductive, transparent and flexible electrode substrates enabling large area homogenous lighting which is demonstrated by Fraunhofer FEP in a roll-to-roll (R2R) process.
“The new electrode substrate SEFAR TCS Planar is manufactured in a roll-to-roll process,” said Roland Steim, project manager at Sefar, “It is a foil-like substrate with a very high conductivity of up to 0.01 ohm/square and a transparency above 87%. This outstanding high conductivity originates from embedded metallic wires with a diameter of currently 40 µm.”
These metal wires reduce resistive losses in the transparent electrode substrate, which allows the design of larger and more homogeneous lighting solutions compared to conventional substrates like pure ITO. In addition, the embedded metallic wires are robust against bending of the substrate and less brittle then thick ITO layers on films.
Sefar developed high conductive, transparent and flexible electrode substrates enabling large area homogenous lighting which is demonstrated by Fraunhofer FEP in a roll-to-roll (R2R) process.
“The new electrode substrate SEFAR TCS Planar is manufactured in a roll-to-roll process,” said Roland Steim, project manager at Sefar, “It is a foil-like substrate with a very high conductivity of up to 0.01 ohm/square and a transparency above 87%. This outstanding high conductivity originates from embedded metallic wires with a diameter of currently 40 µm.”
These metal wires reduce resistive losses in the transparent electrode substrate, which allows the design of larger and more homogeneous lighting solutions compared to conventional substrates like pure ITO. In addition, the embedded metallic wires are robust against bending of the substrate and less brittle then thick ITO layers on films.