The Molecular Arrangements of Alkanethiol Self-Assembled Monolayers on Au(111) Studied by Scanning Tunneling Microscopy
- 1 November 1998
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 37 (11R) , 6183-6185
- https://doi.org/10.1143/jjap.37.6183
Abstract
Structures of self-assembled monolayers (SAMs) of alkanethiol molecules were studied by scanning tunneling microscopy (STM) in ultrahigh vacuum (UHV). Molecularly resolved STM images of alkanethiol SAMs were obtained under a high-resistance tunneling condition. The observed images show that the monolayers consist of the (√3×√3)R30° lattice structure, c(4×2) superlattice and the stripe structures which have a unit cell of p×√3. We observed a new molecular arrangement in the c(4×2) superlattice. The details of the stripe structures are also described.Keywords
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