NOVELTY - Material for functional layers of electronic components with adjustable conductivity, comprises a mixture of (a) a dispersion of functional polymer in one solvent with (b) a true solution of functional polymer in another solvent, the conductivity of the resulting layer being dependent on the mix ratio of the two fractions and the thickness of the layer.    USE - In electronic components (claimed). Applications include transistors, diodes, optical couplers, solar cells, organic LEDs, organic light sources, active and passive matrix displays, conductive fabrics, antistatic coatings and opto-electronic components.    ADVANTAGE - A material which is suitable for all functional layers of an electronic component and is produced by a simple, low-cost method. The combination of different fractions of a functional polymer enables the conductivity of a layer to be varied over several orders of magnitude by changing the mix ratio of the fractions and the thickness of the final layer.    DETAILED DESCRIPTION - Material (I) for a functional layer of an electronic component with adjustable conductivity consists of a mixture of at least two fractions of a functional polymer (II), consisting of (a) a first fraction based on a dispersion of (II) in a first solvent (S1) and (b) a second fraction based on a true solution of (II) in a second solvent (S2), the two fractions being jointly processed, dispersed and/or dissolved and the conductivity of the resulting layer being adjusted by changing the mix ratio of (a)/(b) and the thickness of the layer. INDEPENDENT CLAIMS are also included for    (1) (1) a method (M1) for the production of (I) by combining two different fractions of (II) in a solvent    (2) (2) a method (M2) for processing (I) for the production of functional layers with adjustable conductivity by spin coating, screen printing, offset printing, flexo printing, spray coating, roller coating, ink jet printing or application by doctor blade    (3) (3) electronic components in which all functional layers consist of poly-(3,4-ethylenedioxy-thiophen) (PEDOT) mixtures with different conductivity