Study on the interface between the organic and inorganic semiconductors

▶ Perylene molecule adsorbs uprightly with its long axis cross the dimer at the coverage of 0.5 mono layer. ▶ Molecule adsorbs uprightly with its short axis cross the dimer at the coverage of 1.0 monolayer. ▶ Organic molecules adsorb forming a zigzag structure at the coverage of multi layers. ▶ Work function first decreases, then increases and finally stays constant with the minimum value at the coverage of 1ML. ▶ The dipole, formed on the surface, contributes to the change in work function.