abstract |
An organic optoelectronic device comprising a substrate (201) having an upper surface and a lower surface, at least one organic diode situated on the upper surface of the substrate, the organic diode comprising, an anode (204) comprising a material of high work function situated over the upper surface of the substrate, an organic optoelectronic material (205) at least partially overlying the anode, a cathode (206) comprising a material of low work function at least partially overlying the organic optoelectronic material, the cathode being transparent or semi-transparent, characterised in that the substrate comprises at least one connecting via (202, 203) extending through the substrate from the lower surface to the upper surface, the connecting via being suitable for providing an electrical connection between at least one of the anode and/or the cathode of the organic diode and an external circuit (209). The invention has application in organic light emitting devices and organic photovoltaic devices. |