There is provided an electronic device including at least a first electrode, a second electrode disposed to be spaced apart from the first electrode, and an active layer disposed over the second electrode from above the first electrode and formed of an organic semiconductor material. A charge injection layer is formed between the first electrode and the active layer and between the second electrode and the active layer, and the charge injection layer is formed of an organic material having an increased electric conductivity when the charge injection layer is oxidized.