Structure of 1,4-Benzenedimethanethiol Self-Assembled Monolayers on Gold Grown by Solution and Vapor Techniques

Published

April 29, 2003

Author(s)

D L. Pugmire, Michael J. Tarlov, Roger D. van Zee, Jawad Naciri

Abstract

Characteristics of decanethiol and benzenedimethanethiol (BDMT) self-assembled monolayers (SAMs) grown using solution and vapor techniques were studied with X-ray photoelectron spectroscopy (XPS) and in-plane resistivity measurements. Self-assembled monolayers of decanethiol show nearly identical coverages for samples grown by the conventional solution method and a vapor technique. Films of BDMT grown from solution show monolayer packing densities similar to those of alkanethiols, as indicated by the surface thiolate concentrations. A much different result is obtained for BDMT SAMs when grown from vapor. A monolayer packing density that is 12-16% higher than alkanethiols is observed with XPS and in-plane resistivity measurements. It is also shown that BDMT forms multilayers when SAMs are grown by both solution and vapor techniques.

Citation

Langmuir

Volume

19

Issue

No. 9

Pub Type

Journals

Keywords

benzenedimethanethiol, in-plane resistivity, self-assembled monolayers, x-ray photoelectron spectroscopy

Citation

Pugmire, D. , Tarlov, M. , van Zee, R. and Naciri, J. (2003), Structure of 1,4-Benzenedimethanethiol Self-Assembled Monolayers on Gold Grown by Solution and Vapor Techniques, Langmuir (Accessed May 13, 2025)