Opto-electronic devices containing sulfonated copolymers

An opto-electronic device comprising at least one organic electroluminescent layer and a layer comprising at least one sulfonated aromatic condensation copolymer sandwiched between a pair of electrodes, wherein the at least one sulfonated aromatic condensation copolymer comprises a sulfonated polyarylether block copolymer additionally comprising at least one unsulfonated polyarylethersulfone block having structural units of formula II

• wherein
• R3 and R4 are independently C11-C10 alkyl, C3-12 cycloalkyl, C6-14 aryl, allyl, alkenyl, alkoxy, halo, or cyano;
• Z2 is a direct bond, O, S, CH2, SO, SO2, CO, phospinyl oxide, alkenyl, alkynyl, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, a C3-C12 aromatic radical or a combination thereof;
• M is H, a metal cation, a non-metallic inorganic cation, an organic cation or a mixture thereof;
• c is 0 or an integer from 1 to 3;
• d is 0 or an integer from 1 to 4;
• n is 0 or 1.

An opto-electronic device comprising at least one organic electroluminescent layer and a layer comprising at least one sulfonated aromatic condensation copolymer sandwiched between a pair of electrodes, wherein the at least one sulfonated aromatic condensation copolymer comprises a sulfonated polyarylether block copolymer additionally comprising at least one sulfonated polyethersulfone block having structural units of formula III

• wherein
• R5 is C1-C10 alkyl, C3-C12 cycloalkyl, C6-C14 aryl, allyl, alkenyl, alkoxy, halo, or cyano;
• Z3 is a direct bond, O, S, CH2, SO, SO2, CO, phospinyl oxide, alkenyl, alkynyl, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, a C3-C12 aromatic radical or a combination thereof;
• M is H, a metal cation, a non-metallic inorganic cation, an organic cation or a mixture thereof;
• e is 0 or an integer from 1 to 3;
• f is 0 or an integer from 1 to 4;
• and
• p is 0 or 1.