An organic electroluminescent device comprising an anode, a cathode, an emission layer arranged between the anode and the cathode, a first electron transport layer comprising a first electron transport matrix, a second electron transport layer comprising a second electron transport matrix and a redox n-dopant, wherein the first electron transport layer and the second electron transport layer are arranged between the emission layer and the cathode, wherein the first electron transport layer is arranged closer to the emission layer than the second electron transport layer and the second electron transport layer is arranged closer to the cathode than the first electron transport layer; characterized in that at least the first electron transport matrix comprises a matrix compound according to Chemical Formula I: wherein A 1, A 2, A 3 and A 4 is independently selected from single bond, an unsubstituted or substituted C 6 to C 30 arylene and an unsubstituted or substituted C 1 to C 30 heteroarylene; A 5 is selected from an unsubstituted or substituted C 6 to C 40 aryl group and/or from an unsubstituted or substituted C 2 to C 40 heteroaryl group; R 1 to R 5 are independently a substituted or unsubstituted C 6 to C 30 aryl group, a substituted or unsubstituted C 2 to C 30 heteroaryl group; a to e are independently an integer of 0 or 1 and 4 ≤ a+b+c+d+e≤5; and wherein in the substituted group, at least one hydrogen is replaced by (i) deuterium, (ii) a halogen, (iii) a C 2 to C 60 tertiary amino group, wherein the nitrogen atom of the tertiary amino group is substituted with two independently selected C 1 to C 30 hydrocarbyl groups or the nitrogen atom of the C 2 to C 60 tertiary amino group forms a C 1 to C 30 heterocyclic group, (iv) a C 2 to C 60 phosphine oxide group, wherein the phosphorus atom of the phosphine oxide group is substituted with two C 1 to C 30 groups independently selected from hydrocarbyl, halogenated hydrocarbyl and hydrocarbyloxy or the phosphorus atom of the phosphine oxide group forms a C 1 to C 30 heterocyclic group, (v) a C 1 to C 22 silyl group, (vi) a C 1 to C 30 alkyl group, (vii) a C 1 to C 10 alkylsilyl group, (viii) a C 6 to C 22 arylsilyl group, (ix) a C 3 to C 30 cycloalkyl group, (x) a C 2 to C 30 heterocycloalkyl group, (xi) a C 6 to C 30 aryl group, (xii) a C 2 to C 30 heteroaryl group, (xiii) a C 1 to C 20 alkoxy group, (xiv) a C 1 to C 30 perfluoro-hydrocarbyl group, (xv) a C 1 to C 10 trifluoroalkyl group, or (xvi) a cyano group. A 1, A 2, A 3 and A 4 is independently selected from single bond, an unsubstituted or substituted C 6 to C 30 arylene and an unsubstituted or substituted C 1 to C 30 heteroarylene; A 5 is selected from an unsubstituted or substituted C 6 to C 40 aryl group and/or from an unsubstituted or substituted C 2 to C 40 heteroaryl group; R 1 to R 5 are independently a substituted or unsubstituted C 6 to C 30 aryl group, a substituted or unsubstituted C 2 to C 30 heteroaryl group; a to e are independently an integer of 0 or 1 and 4 ≤ a+b+c+d+e≤5; and (i) deuterium, (ii) a halogen, (iii) a C 2 to C 60 tertiary amino group, wherein the nitrogen atom of the tertiary amino group is substituted with two independently selected C 1 to C 30 hydrocarbyl groups or the nitrogen atom of the C 2 to C 60 tertiary amino group forms a C 1 to C 30 heterocyclic group, (iv) a C 2 to C 60 phosphine oxide group, wherein the phosphorus atom of the phosphine oxide group is substituted with two C 1 to C 30 groups independently selected from hydrocarbyl, halogenated hydrocarbyl and hydrocarbyloxy or the phosphorus atom of the phosphine oxide group forms a C 1 to C 30 heterocyclic group, (v) a C 1 to C 22 silyl group, (vi) a C 1 to C 30 alkyl group, (vii) a C 1 to C 10 alkylsilyl group, (viii) a C 6 to C 22 arylsilyl group, (ix) a C 3 to C 30 cycloalkyl group, (x) a C 2 to C 30 heterocycloalkyl group, (xi) a C 6 to C 30 aryl group, (xii) a C 2 to C 30 heteroaryl group, (xiii) a C 1 to C 20 alkoxy group, (xiv) a C 1 to C 30 perfluoro-hydrocarbyl group, (xv) a C 1 to C 10 trifluoroalkyl group, or (xvi) a cyano group.