ORGANIC ELECTROLUMINESCENT COMPOSITIONS

摘要

Organic electroluminescent compositions comprise (a) a charge transport matrix comprising at least one electron transport material; (b) at least one non-polymeric emissive dopant; and (c) at least one tertiary aromatic amine selected from the group consisting of (1) tertiary aromatic amines wherein at least one of the organic groups comprises a substituted phenyl group having an electron-donating substituent in the para-position or two independently selected electron-donating substituents in the meta-positions, (2) tertiary aromatic amines wherein at least two of the organic groups each comprise an independently selected substituted biphenyl or substituted fluorenyl group having an electron-donating substituent in the para-position of its terminal phenyl ring, and (3) tertiary aromatic amines wherein at least one of the organic groups comprises a fused polyaromatic group and at least one other organic group comprises a substituted biphenyl or substituted fluorenyl group having an electron-donating substituent in the para- position of its terminal phenyl ring.