Figure 4

Time Resolved Electroluminescence (TREL) spectra in 0–400 ns.

Device: Cl-ITO/Si(tOXD)(oTPA): x% Ir-G (90 nm)/TPBI (65 nm)/CsF/Al with different doping levels of Ir-G: (a) 0.1 wt%, (b) 3 wt%, and (c) 8 wt%. (d) The spectra of subtracting 0 ns intensity from 100–400 ns in 0.1 wt% dopant system.