Synthesis of novel electro-transporting emitting compounds

A new type of naphthalimide derivatives (NI-OXZ) containing oxadiazole moiety has been synthesized and successfully developed as organic electro-transporting electro-luminescent (EL) materials. The high electron affinity of oxadiazole moiety in the dyad molecules can increase the electron-injection properties and keep the carrier balance. The relative high T-g value for such naphthalimide-oxadiazole dyads are particularly desirable for enhancing the stability and lifetime of opto-electronic devices. (C) 2002 Elsevier Science Ltd. All rights reserved.