Open AccessThe structure and electronic state of the ordered thin film of perylene and tetracene on Ag(110) surface
Author(s) -
Mao Hong-Ying,
Huang Han,
Yan Xin-Cheng,
Chunming Qiao,
Qian Hui-Qin,
Jianhua Zhang,
Haiyang Li,
He Pi-Mo,
Bao Shi-Ning
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.460
Subject(s) - tetracene , perylene , monolayer , materials science , substrate (aquarium) , fermi level , pentacene , photoemission spectroscopy , molecule , condensed matter physics , electron , x ray photoelectron spectroscopy , layer (electronics) , chemistry , nanotechnology , physics , nuclear magnetic resonance , oceanography , thin film transistor , organic chemistry , quantum mechanics , geology
The growth of perylene and tetracene on Ag (110) has been studied by the ultraviolet photoemission spectroscopy (UPS) and low-energy electron diffraction (LEED). The LEED results illustrate that an ordered C(6×2) structure can be observed when the thickness of perylene is about one monolayer (thickness of 03n m), and an ordered C (4×2) structure for tetracene with a thickness of one monolayer. From the measurements of UPS, four emission features of perylene are located at 35, 48, 64 and 85eV below the Fermi level respectively, and f our characteristic peaks, for tetracene, are located at 34, 49, 59 and 9 4 eV below the Fermi level. The angle_resolved ultraviolet photoemission spectro scopy measurements show that both perylene and tetracene near the interface are parallel to the substrate, the tetracene molecule is along 110 direction.