Production of organic light-emitting diode with fluorescence featured quinoline derivative

Abstract

High-priced coating devices limit producing electronic devices and circuit applications widely in laboratories. Simply In this study spin coating technique was used to create surface thin films. Also with this method, an OLED (Organic Light Emitting Diode) device was practically produced. OLED device includes mainly HTL (hole transfer layer), fluorescent layer (lightemitting layer), and an ETL (electron transfer layer). Lightemitting layers in OLED experimental studies are frequently done with commercially produced expensive fluorescence polymers. As an example, MEH-PPV (Poly[2-methoxy-5-(2'ethyl-hexoxy)-1,4-phenylenevinylene]), Alq3 (Tris-(8hydroxyquinolinato) aluminum) are mostly known and used fluorescent semiconductor polymers. Alternative to these fluorescent polymers, three different produced quinoline ligand products has fluorescent feature were evaluated. After comparing the fluorescence yields of the produced three complexes, it was seen that 5,7-dibromo-8-hydroxyquinoline has the highest fluorescent response from the others. OLED device production was done with a commercial MEH-PPV (commercial) fluorescent product, and produced (5,7-dibromo-8-hydroxyquinoline). Designed OLED device illumination spectrum was found in the UV (ultraviolet) region. It was concluded that this quoniline product can use as a fluorescent material to produce an OLED device.