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.
有机电致发光组分包括(a)至少包括一种电子传输材料的电荷传输基质;(b)至少一种非聚合发射掺杂剂;以及(c)至少一种从以下组中选择的三级芳香胺:(1)三级芳香胺,其中至少一个有机基团包括一个带有电子供体取代基的取代苯基在对位,或者两个独立选择的电子供体取代基在间位;(2)三级芳香胺,其中至少两个有机基团各自包括一个独立选择的带有电子供体取代基的取代
联苯或取代
芴基在其末端苯环的对位;以及(3)三级芳香胺,其中至少一个有机基团包括一个融合的多芳香基团,至少另一个有机基团包括一个独立选择的带有电子供体取代基的取代
联苯或取代
芴基在其末端苯环的对位。