A Franco-German development project has concluded with the successful demonstration of a new set of high-efficiency transparent electrodes for use in flexible OLED screens and photovoltaic (PV) panels.
With funding from both national governments the three-year innovation printable electrode materials for high performance lighting devices and organic solar cells (Image) project twinned Fraunhofer-COMEDD researchers on organic materials in Dresden, with staff at the Carnot MIB Institute at the University of Bordeaux.
The French academics produced the raw materials and solutions used in forming the new electrodes. The Fraunhofer team then took these and drew on their existing expertise in structuring techniques to allow them to be integrated onto PET substrates and encapsulated for use in organic solar cells and OLED screens.
The electrodes which have now been developed are ultimately intended to give an alternative to existing electrodes derived from indium tin oxide (ITO) in televisions, smartphone screens and a new generation for cheap PV panels. Not only would the plastic electrodes developed by Image allow much greater flexibility than existing ITO backplanes, but once production volume can be increased to a commercial level it would be significantly cheaper too. The collation partners are now actively looking for partners in the private sector to help achieve this transition from test model to the factory floor.
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