Figure 1: Molecular structures of the materials used in the experiments.
From: All-solution processed polymer light-emitting diode displays

MEH-PPV and PFO-DHTBT (poly[4,7-di(4-hexyl-2-thienyl)-2,1,3-benzothiadiazole-co-(9,9-dioctyl)-2,7-fluorene]) are red emitters. P-PPV is a green emitter. The dentrimer G0 and PF-FSO are blue emitters. PFNR2 is an electron-injection material.