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O: Fachverband Oberflächenphysik
O 54: Organic Molecules on Inorganic Substrates III: Magnetism, Doping and Interfaces
O 54.5: Talk
Wednesday, April 3, 2019, 11:30–11:45, H24
Optoelectronic Properties of Hybrid Systems of Silicon and the Organic Semiconductor Copper-Hexadecafluoro-Phthalocyanine — •Anna Stadlbauer, Hannah Schamoni, and Martin Stutzmann — Walter Schottky Institut, TUM, Garching, Germany
Hybrid systems of organic and inorganic semiconductors combine these two materials in order to benefit from their complementary material properties, e.g.for semiconducting devices like solar cells. Therefore, a detailed knowledge of the electronic properties of the interface between the organic and the inorganic semiconductor is necessary.
The organic semiconductor chosen in this work, copper-hexadecafluorophthalocyanine (F16CuPc), is air-stable and exhibits n-type semiconducting behavior, and its structural and morphological properties have been investigated by many groups. Besides, several studies have investigated the interaction between metals or other organic semiconductors and F16CuPc.
Here, thin films of F16CuPc are deposited on silicon substrates of different doping types and doping concentrations in an organic molecular beam setup. The resulting hybrid systems are characterized amongst others by current-voltage and Kelvin Probe Force Microscopy measurements. Based on these data, we show the influence of doping concentration and type of the Si substrate on the optoelectronic properties of the hybrid heterojunctions.