Organic semiconductor mixture and organic optoelectronic device containing the same

An organic semiconductor mixture comprising a n-type organic semiconductor compound and a p-type organic semiconductor compound;

• wherein the p-type organic semiconductor compound is a conjugated polymer which includes at least one acceptor unit and at least one donor unit while the n-type organic semiconductor compound is represented by formula I:
• wherein SP1 is selected from the group consisting of a vinyl group, a phenyl ring, an electron donating group, a substituted or unsubstituted monocyclic heteroaryl group containing 5 to 20 ring atoms, and a substituted or unsubstituted polycyclic heteroaryl group containing 5 to 20 ring atoms;
• Ar0-Ar3 are substituted fused polycyclic heteroaryl groups containing 5-35 ring atoms;
• A0-A3 are monocyclic or polycyclic heteroaryl groups containing 5-20 ring atoms and at least one electron-withdrawing group;
• B0-B7 are selected from the group consisting of a vinyl group, a phenyl ring, an electron donating group, a substituted or unsubstituted monocyclic heteroaryl group containing 5 to 20 ring atoms, and a substituted or unsubstituted polycyclic heteroaryl group containing 5 to 20 ring atoms;
• E0-E3 are monocyclic or polycyclic heteroaryl groups containing 5-20 ring atoms and at least one electron-withdrawing group, defined as different from the SP1 group;
• a, b, c, and d are 0 or 1 and a+b+c+d≥2;
• and
• m, n, o, p, q, r, s, and t are selected from the group consisting of 0, 1, and 2.