Figure 4: Exciton lifetime.
From: Highly efficient inverted polymer light-emitting diodes using surface modifications of ZnO layer
(a–c) Time-resolved PL signal of (a) Quartz/ZnO-F/F8BT, (b) Quartz/ZnO-R1/F8BT and (c) Quartz/ZnO-R2/F8BT with and without 2-ME+EA, measured via TCSPC at an excitation wavelength of 450 nm and an emission wavelength of 540 nm. (d) Summary of the exciton lifetimes of F8BT on the different ZnO layers.
