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.
Tuning cation–anion interactions in ionic liquids by changing the conformational flexibility of the cation
作者:R. K. Blundell、P. Licence
DOI:10.1039/c4cc05505e
日期:——
XPS experiments reveal that anion–cation based interactions may be enhanced by the introduction of conformational restriction into substituent chains of quaternary ammonium cations.