NOVELTY - Manufacturing (M1) an organic electronic component, comprises e.g.: (a) providing a substrate (30), an organic material having a first organic solvent, a first heating device (31) and a hot air generator; (b) coating organic material on substrate; (c) heating substrate by first heating device and hot air generator to dry organic material so as to cause first organic solvent to be evaporated from organic material to form a first carrier transport layer on substrate; and (d) forming an organic solution by dissolving salt e.g. cesium acetate in second organic solvent.    USE - The method is useful for manufacturing an organic electronic component (claimed) which is useful as an organic molecular light-emitting component, organic molecular transistor, organic solar cell and organic light detector.    ADVANTAGE - The method is a solution process (claimed) that is applied to manufacture the organic electronic component with a multilayer structure, thus reducing production cost which is favorable for the commercialization and mass production for the organic electronic component.    DETAILED DESCRIPTION - Manufacturing (M1) an organic electronic component, comprises: (a) providing a substrate (30), an organic material having a first organic solvent, a first heating device (31) disposed below the substrate and a hot air generator disposed above the substrate; (b) coating the organic material onto the substrate; (c) heating the substrate by the first heating device and the hot air generator to dry the organic material so as to cause the first organic solvent to be evaporated from the organic material to form a first carrier transport layer on the substrate; (d) forming an organic solution by dissolving a salt comprising lithium carbonate, lithium acetate, cesium carbonate and/or cesium acetate in a second organic solvent; and (e) applying the organic solution onto the first carrier transport layer to form a second carrier transport layer, where the first organic solvent is evaporated from the organic material to reduce a dissolution between the organic solution and the first carrier transport layer. INDEPENDENT CLAIMS are also included for:    (1) a method (M2) for manufacturing an organic electronic component, comprising: (a1) providing a first carrier transport layer and an organic solvent; (b1) forming an organic solution by mixing the organic solvent with the salt, where the organic solution and the salt are mixed uniformly; and step (e) as above per se; and    (2) a method (M3) for manufacturing an organic electronic component, comprising: (a2) providing a first carrier transport layer; (b2) providing an organic solution including a metal ion which is lithium ion and/or cesium ion; and step (e) as above per se    DESCRIPTION OF DRAWING(S) - The figure shows a device for manufacturing an organic electronic component.    Substrate (30)    First heat device (31)    Hole transport layer (3510)    First electron transport layer (3520)    Second electron transport layer (3521)