Organic light emitting diode devices: An energy
2020-11-1 · Requirements of flexible substrate are less than 10 −5 to 10 −6 g/m 2 /day permeability of water vapor at 39 °C and 95% relative humidity (RH), and low oxygen permeation. It is known that barrier thin film of oxides , coated onto plastic films, usually have imperfections such as pinholes, cracks, grain boundaries, etc. and not enough to protect the device [ 97 , 110 ].
Get Price