Making light work: Polymer-based compositions with a perfluorinated ionomer (PFI) as hole injection/extraction layers are introduced for organic LEDs and organic photovoltaic cells. The work functions of the layers formed by single spin-coating could be tuned to improve device efficiency and device lifetime. The effects of the PFI surface layers on charge injection/extraction and device lifetime were investigated.
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Choi et al. (2011) studied this question.
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