Bathocuproine derivative, and optoelectronic device having buffer layer containing same

Abstract

Proposed are a bathocuproine (BCP) derivative with improved molecular planarity, and an optoelectronic device including the BCP derivative as a buffer layer thus having enhanced long-term stability. More particularly, proposed is a bathocuproine (BCP) derivative, wherein a 1,10-phenanthroline compound is unsubstituted at 4- and 7-positions, and is symmetrically substituted at 2- and 9-positions with phenyl groups, alkylphenyl groups, halophenyl groups thereby providing improved molecular planarity. According to the present disclosure, it is possible to employ the BCP derivative as a novel tailor-made buffer material for an electron transport layer, which overcomes the stereochemical limitations of BCP as a conventional buffer layer material while also exhibiting excellent electrical properties.

Dependencies are inferred from the claim text.