Highly conductive transparent resin electrode instead of ITO square flexible OLED lighting panel

2023-11-11 04:08:41

Recently, AGFA-Gevaert NV of Belgium, Philips Research of the Netherlands, HolstCentre of the Netherlands, IMEC of Belgium and TNO of the Netherlands announced the production of a 12cm square flexible O LED lighting panel with high conductivity transparent resin electrode instead of ITO. The result was achieved with the assistance of the EU project "Fast2Light", which aims to manufacture flexible OLED lighting using a printing process.

Under the low temperature process, it is difficult for ITO to ensure the problem of conductivity. The transparent resin used this time has high conductivity and is suitable for use in a coating method, so that it is easy to adopt a printing process. This transparent resin is "Orgacon" developed by AGFA as an antistatic material for film. Based on the conductive resin PEDOT/PSS which can also be used for O LED components

Currently, Sanyo Electric and Tokyo Institute of Technology are actively developing such materials. The transparent electrodes of general OLED lighting panels are mostly laminated ITO films and PEDOT/PSS films. This time, by replacing the ITO with Orgacon, the conductivity of the transparent electrode was improved by about 6 times (AGFA). The finished OLED lighting panel increases the proportion of the printing process, such as inkjet printing, etc., which is also formed on the transparent electrode. The bottom plate uses metal foil and can be bent at will. However, specific conductivity, brightness, and luminescence lifetime are not disclosed.

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