Acta Phys. -Chim. Sin. ›› 2004, Vol. 20 ›› Issue (08): 892-896.doi: 10.3866/PKU.WHXB20040822

• Note • Previous Articles    

The Electronic States of Ordered Thin Film of Perylene on Ag (110)

Huang Han;Yan Xin-Cheng;Mao Hong-Ying;Chen Qiao;Qian Hui-Qin;Zhang Jian-Hua;Li Hai-Yang;He Pi-Mo;Bao Shi-Ning   

  1. Physics Department, Zhejiang University, Hangzhou　310027;Zhejiang Educational Institute,Hangzhou　310012;School of Chemistry and Ultrafast Photonics Collaboration University of St. Andrews, UK
  • Received:2004-02-17 Revised:2004-04-14 Published:2004-08-15
  • Contact: Bao Shi-Ning E-mail:phybao@dial.zju.edu.cn

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Abstract: The growth of perylene on Ag (110) has been studied by the ultraviolet photoemission spectroscopy (UPS) measurements and the low-energy electron diffraction (LEED).Four emission features from perylene are located at 3.5,4.8,6.4 and 8.5 eV below the Fermi level respectively. An ordered structure of C(6×2) can be observed when the organic film is about one monolayer (0.3 nm thickness). The angle-resolved ultraviolet photoemission spectroscopy (ARUPS) measurements show that the molecules of perylene near the interface are parallel to the substrate. The desorption of the organic material occurs with warming the substrate, but the perylene molecules are stable on Ag(110) surface, no decomposition is observed below 140 ℃.

Key words: Organic semiconductor material, Ultraviolet photoemission spectroscopy