Electroluminescence of organic poly-TFB/Alq3 light-emitting device

O-LED has been make from multilayer organic semiconductors materials to produce electroluminescence. The light emitted diode was synthesis by using organic compounds that are embedded in layers of thin films, poly (3, 4, -ethylene dioxythiophene) / polystyrene sulfonic acid (PEDOT: PSS), poly [(9, 9-dioctylfluorenyl-2, 7-diyl)-co-(4, 4′-(N-(4-secbutylphenyl) diphenylamine)] (TFB) and Tris (8-quinolinolato) aluminum (III) (Alq3), by the spin coating technique. The electroluminescence of O-LED was obtained by studying the effect of changing the forward bias voltages 8, 9, 10 V at room temperature. It was also observed by drawing the relationship between voltage and current (I-V) that the latter changes depending on the change in voltage with a zonal division in which the knee voltage was 0.55 V. These characteristics were invested to draw the broad spectrum of emission for a wavelength ranging from 350 to 750 nm, through which the color spaces were adopted and compared to the CIE 1931 system, and the correlated color temperature of the device, which ranges from 9500 to12700 K.