NOVELTY - Electronic device (100) comprises at least one layer comprising a polymer composition, where the polymer composition comprises at least one intrinsically conductive polymer having at least one pyridine-fused heteroaryl monomer unit (A); and at least one colloid-forming fluorinated acid polymer.    USE - Used as electronic device e.g. organic LED, LED display, diode laser, lighting panel, photodetectors, photoconductive cells, photoresistors, photoswitches, phototransistors, phototubes, infrared detectors, or biosensors, photovoltaic devices, solar cells or transistors.    ADVANTAGE - The polymer composition used in the device exhibits improved physical and electrical properties.    DETAILED DESCRIPTION - Electronic device comprises at least one layer comprising a polymer composition, where the polymer composition comprises at least one intrinsically conductive polymer having at least one pyridine-fused heteroaryl monomer unit (A) of formula (I) or (II); and at least one colloid-forming fluorinated acid polymer.    R1-R3 = H, alkyl, alkenyl, alkoxy, alkanoyl, alkylthio, aryloxy, alkylthioalkyl, alkylaryl, arylalkyl, amino, alkylamino, dialkylamino, aryl, alkylsulfinyl, alkoxyalkyl, alkylsulfonyl, arylthio, arylsulfinyl, alkoxycarbonyl, arylsulfonyl, acrylic acid, phosphoric acid, phosphonic acid, halo, nitro, CN, OH, epoxy, silane, siloxane, alcohol, benzyl, carboxylate, ether, ether carboxylate, amidosulfonate, ether sulfonate, ether sulfonic acid, ether sulfonimide, ester sulfonate or urethane, where the adjacent R1-R3 groups together may form an alkylene or alkenylene chain completing a 3-7-membered aryl or alicyclic ring, which optionally includes one or more divalent N, S, Se, Te or O, where any of the substituent groups are optionally fluorinated;    Q = NR1a or S; and    R1a = H, alkyl, alkenyl, aryl, alkanoyl, alkylthioalkyl, alkylaryl, arylalkyl, amino, epoxy, silane, siloxane, alcohol, benzyl, carboxylate, ether, ether carboxylate, ether sulfonate, ester sulfonate or urethane.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of an organic electronic device.    Organic electronic device (100)    Anode layer (110)    Buffer layer (120)    Electroactive layer (130)    Electron injection/transport layer (140)    Cathode layer. (150)