Interfacial Layer PEO, PEIE

In conventional OLEDs or OPVs, the electron injection layers are commonly fabricated by vacuum processes such as thermal evaporation under high vacuum conditions, owing to the vulnerability of these layers to oxygen and moisture in the air. Devices not employing these materials usually show poor device efficiencies. Electron injection layers such as LiF, CsF, NaF, and CS2C03 are 

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