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The performance of organic light-emitting diodes (OLED), based on NPB/Alq 3 /KCl/Alq 3 active regions, with various anode (i.e. ITO and ITO/MoO 3 ) and cathode (i.e. Al and LiF/Al) structures is compared. NPB, Alq 3 , KCl, ITO, MoO 3 , Al and LiF are N,N′-bis-(1-naphthl)-diphenyl-1,1′-biphenyl-4,4′-diamine, tris (8-hydroxyquinoline) aluminum, potassium chloride,...
A multilayer organic light-emitting diode (OLED) has been fabricated with a thin (1nm) potassium chloride (KCl) layer inserted inside an electron transport layer (ETL), tris (8-hydroxyquinoline) aluminum (Alq 3 ). The structure of device was ITO/NPB/Alq 3 /KCl/Alq 3 /Al. The KCl layer was inserted inside 60nm Alq 3 at 10, 20 and 30nm positions away from the Alq ...
We report on the fabrication of organic light-emitting diodes (OLEDs) using a zinc acetate ((CH 3 COO) 2 Zn) layer as the cathode buffer layer. The results show that the device containing a (CH 3 COO) 2 Zn interlayer shows improved luminance and efficiency due to the Zn–N bond formation resulting in the occurrence of Alq 3 anion and also due to the band bending...
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