NOVELTY - An electronic device comprises a substrate (10), an electrode (20), an organic functional layer and another electrode (40). The organic functional layer is arranged between the former electrode and the latter electrode, where the organic functional layer comprises three matrix materials. The third matrix material has lowest unoccupied molecular orbital (LUMO), which is energetically lower than the LUMO of the latter matrix material and the LUMO of the former matrix material.    USE - Electronic device such as organic light emitting device, solar cell and a transistor (claimed).    ADVANTAGE - The electronic device has an improved charge carrier transport and an improved charge carrier balance in the organic layers, thus ensures increased efficiency.    DETAILED DESCRIPTION - The electronic device comprises a substrate, an electrode, an organic functional layer and another electrode. The organic functional layer is arranged between the former electrode and the latter electrode, where the organic functional layer comprises three matrix materials. The third matrix material has lowest unoccupied molecular orbital (LUMO), which is energetically lower than the LUMO of the latter matrix material and the LUMO of the former matrix material. The latter matrix material has highest occupied molecular orbital (HOMO), which is energetically higher than the HOMO of the former matrix material and the HOMO of the third matrix material. An INDEPENDENT CLAIM is included for a method for producing electronic device, which involves:    (A) providing a substrate;    (B) providing the former electrode and the latter electrode through vapor deposition; and    (C) arranging organic functional layer between the former electrode and the latter electrode, where the former matrix material, the latter matrix material and the third matrix material are applied simultaneously.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic side view of the electronic device.    Substrate (10)    Electrodes (20,40)    Emission layer (30)