Increasing surfactant adsorption ability using surfactant engineering for high performance water-processed organic electronic device.
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초록
내용
As the development stage of polymer semiconductor technology is approaching to commercialization, eco-friendly process for polymer semiconductor is getting increasing attention. Up to now, nanoparticle of polymer semiconductor using miniemulsion process has been widely used for such eco-friendly process. Nonetheless, opto-electronic performances of water-process devices are still inferior to their organic-solvent-processed counterpart. The main issue for the success of water-borne polymer semiconductor is how to handle large amount of residual surfactants, which is used as stabilizers for dispersing organic semiconductors, because they can induce micro-scale aggregation and low charge carrier mobility. Here, we report a new surfactant engineering technology for water-borne polymer semiconductors which enables to reduce the amount of surfactant by controlling the adsorption ability of surfactant on water-borne polymer nanoparticle.