Moisture barriers for flexible electronics

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Defects on plastic substrates such as pinholes, cracks and grain boundaries cause a ‘pore effect,’ where oxygen and water molecules are able to seep through and penetrate through the plastic barrier and into the active material. For applications such as flexible OLED displays, organic solar cells, or even electrophoretic displays, sensitivity to oxygen and moisture compromises device lifetime significantly. This means that in order to achieve adequate lifetime for flexible devices that would make viable commercial products, the pathway for oxygen and moisture down into the active layers must be blocked. ...cont´d

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