Described herein is an organic opto-electronic device comprising a cathode comprising at least one zero-valent metal; an anode; an opto-electronically active organic material; wherein said cathode is in contact with at least one organic ammonium salt. In certain embodiments, the organic ammonium salt has structure (I)
wherein R
1
-R
4
are independently at each occurrence a C
1
-C
20
aliphatic radical, a C
3
-C
20
cycloaliphatic radical, or a C
3
-C
20
aromatic radical is disclosed and wherein X
+
is selected from the group consisting of monovalent inorganic anions, monovalent organic anions, polyvalent inorganic anions, polyvalent organic anions, and mixtures thereof.