The impact of ZnO and AZO thickness on physical properties of ITO/AZO and ITO/ZnO bilayers are scrutinized and compared.
Results show that with the enlargement of both ZnO and AZO film thickness, the physical properties are gradually improved.
The physical properties of ITO/AZO bilayers are found to be superior regarding ITO/ZnO bilayers.
UV-OLEDs using ITO/AZO and ITO/ZnO bilayers have been fabricated and compared in terms of electrical and optical characteristics.