Figure 4
From: Stable Bending Performance of Flexible Organic Light-Emitting Diodes Using IZO Anodes
(a) The normalized PL spectrum of the F8BT layer and the normalized EL spectrum of the FOLED, when a biased voltage of 7.5 V is applied; the inset is a photograph of the green colored emission from the FOLED in the dark. (b) Schematic energy diagram of the FOLED with a structure of a-IZO/PEDOT:PSS/F8BT/LiF/Al in a thermal equilibrium state and (c) the charge carriers injection mechanism at the PEDOT:PSS/F8BT interface when an turn-on voltage of ~4 V is applied to the FOLED.
