Coverage dependence of the structure of tetracene on Ag(110)

Han Huang, Fei Song, Bin Lu, Hanjie Zhang, Weidong Dou, Haiyang Li, Pimo He, Shining Bao, Qiao Chen, Wuzong Zhou

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The ordered adsorption structures of tetracene on Ag(110) have been studied by low energy electron diffraction (LEED), scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. At a low coverage, as calibrated with LEED, both p(4 x 4) and c(8 x 4) ordered structures are simultaneously formed on an Ag(110) surface at room temperature. STM images suggest the molecular plane is parallel to the Ag surface with its long molecular axis aligned along the [001] azimuth. DFT optimization reveals a separation of 0.3 nm between the molecular plane and substrate surface while the center of the tetracene molecule is on the long bridge site. Increasing coverage slightly, a

[GRAPHICS]

structure is formed while the adsorbed molecules maintain the flat-lying geometry with adjacent molecules alternating their height relative to the surface.

Original languageEnglish
Pages (from-to)315010
Number of pages6
JournalJournal of Physics: Condensed Matter
Volume20
Issue number31
DOIs
Publication statusPublished - 6 Aug 2008

Keywords

  • SI(100)-2 X-1
  • TRANSISTORS
  • SURFACES
  • GROWTH
  • SCALE

Fingerprint

Dive into the research topics of 'Coverage dependence of the structure of tetracene on Ag(110)'. Together they form a unique fingerprint.

Cite this