Flexible and Air-Stable Inverted Polymer Light Emitting Diodes using Metal Foils and Polyethylene Imine Interlayer
- Flexible and Air-Stable Inverted Polymer Light Emitting Diodes using Metal Foils and Polyethylene Imine Interlayer
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- Inverted structure polymer light-emitting diodes (IPLEDs) have been attracting many attentions because of their many advantages such as air-sensitive metal oxide as a hole/electron injection layer, low cost and ease of fabrication. To make these flexible, stable in air and possible for roll-to-roll process, new substrate, electrode and electron injection interlayer should be studied. In this paper, we introduced metal foils on IPLEDs as a cathode and substrate simultaneously and reported two air-stable polymer electron injection interlayer
branched polyethyleneimine (PEI) and polyethyleneimine ethoxylated (PEIE).
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