NOVELTY - Polymer film comprises: (a) one or more electrically conductive polymers comprising polythiophene polymers, polyselenophene polymers, polytelurophene polymers, polypyrrole polymers, polyaniline polymers and fused heterocyclic heteroaromatic polymers and optionally one or more water soluble polymeric acid dopants; and (b) an ionic liquid, comprising one or more compounds comprising (i) an organic cation, and (ii) an anion comprising cyanate anions, tetracyanoborate anions, tetrakis-(p-(dimethyl(1H,1H,2H,2H-perfluorooctyl)silyl)phenyl)borate anions and hexafluorophosphate anions.    USE - The polymer film is useful in electronic device including organic LED device, light emitting diode display, diode laser, liquid crystal display, lighting panel, photodetector, photoconductive cell, photoresistor, photoswitch, phototransistor, phototube, infrared detector, biosensor, touch screen display device, photovoltaic device, solar cell, transistor and diode (all claimed).    ADVANTAGE - The polymer film exhibits good chemical stability, improved flammability, negligible vapor pressure, and high ionic conductivity.    DETAILED DESCRIPTION - Polymer film comprises: (a) one or more electrically conductive polymers comprising polythiophene polymers, polyselenophene polymers, polytelurophene polymers, polypyrrole polymers, polyaniline polymers and fused heterocyclic heteroaromatic polymers and optionally one or more water soluble polymeric acid dopants; and (b) an ionic liquid, comprising one or more compounds each comprising (i) an organic cation, and (ii) an anion comprising cyanate anions, tetracyanoborate anions, tetrakis-(p-(dimethyl(1H,1H,2H,2H-perfluorooctyl)silyl)phenyl)borate anions, and hexafluorophosphate anions, where if the ionic liquid comprises a compound that comprises a hexafluorophosphate anion, and the one or more electrically conductive polymers comprise one or more polythiophene polymers and/or one or more water soluble polymeric acid dopants. INDEPENDENT CLAIMS are included for:    (1) an electronic device comprising (a) an anode or combined anode and buffer layer, (b) a cathode layer, (c) an electroactive layer, disposed between anode layer and cathode layer, (d) optionally, a buffer layer, disposed between anode layer and electroactive layer, (e) optionally, a hole transport layer, disposed between anode layer and electroactive layer, or if buffer layer is present, between buffer layer and electroactive layer, and (f) optionally an electron injection layer, disposed between electroactive layer and cathode layer;    (2) a polymer composition comprising (a) a liquid carrier, (b) one or more electrically conductive polymers, and (c) the an ionic liquid;    (3) making the polymer composition, comprising stirring a solution or dispersion of an electrically conductive polymer in a liquid carrier, and adding an ionic liquid to the solution or dispersion of the electrically conductive polymer in the liquid carrier while stirring the solution or dispersion of the electrically conductive polymer in the liquid carrier; and    (4) making polymer film, comprising (A) forming a layer of a polymer composition, and (B) removing the liquid carrier from the layer.