1Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 2Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240 3School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 4Department of Physics, Hangzhou Normal University, Hangzhou 310036 5Department of Physics, Zhejiang University, Hangzhou 310027
Abstract：We investigate the adsorption of organic molecular semiconductor perylene on ($7 \times 7$) reconstructed Si(111) surface by ultraviolet photoemission spectroscopy. It is observed that seven features that derive from the organic material are located at 0.71, 2.24, 4.0, 5.9, 7.46, 8.65 and 9.95 eV in binding energy. The theoretical calculation results reveal the most stable adsorption geometry of organic molecule perylene on Si(111) ($7 \times 7$) substrates is at the beginning of deposition.
2020, Vol. 37 
