Method for producing fullerene derivatives

The invention relates to a method for producing fullerene derivatives. In particular, the invention describes an improved method for producing fullerene derivatives, and the method is characterized in that the fullerene is reacted with at least one halogen atom. The invention includes a method for producing fullerene derivatives by selectively obtaining fullerene derivatives while separating fullerene derivatives at the same time. The invention comprising the following producing method, especially relatively large amount of materials can be reacted and separated. The invention describes using fullerene C60F36 as a p-doping agent in a hole-transporting layer of an organic semiconductor assembly, and the organic semiconductor assembly has a layer arrangement comprising an electrode, an opposite electrode and a series of organic layers between the electrode and the opposite electrode.