Characterization of self-assembled monolayers of fullerene derivatives on gold surfaces: Implications for device evaluations

被引：0
|
作者：
Shirai, Yasuhiro [1 ]
Cheng, Long [1 ]
Chen, Bo [1 ]
Tour, James M. [1 ]
机构：
[1] Department of Chemistry, Smalley Institute for Nanoscale Science and Technology, Rice University, 6100 Main Street, Houston, TX 77005, United States
来源：
Journal of the American Chemical Society | 2006年 / 128卷 / 41期
关键词：
The widely employed approach to self-assembly of fullerene derivatives on gold can be complicated due to multilayer formations and head-to-tail assemblies resulting from the strong fullerene fullerene and fullerene-gold interactions. These anomalies were not examined in detail in previous studies on fullerene self-assembled monolayers (SAMs) but were clearly detected in the present work using surface characterization techniques including ellipsometry; cyclic voltammetry (CV); and X-ray photoelectron spectroscopy (XPS). This is the first time that SAMs prepared from fullerene derivatives of thiols/thiol esters/disulfides have been analyzed in detail; and the complications due to multilayer formations and head-to-tail assemblies were revealed. Specifically; we designed and synthesized several fullerene derivatives based on thiols; thiol acetates; and disulfides to address the characterization requirements; and these are described and delineated. These studies specifically address the need to property characterize and control fullerene-thiol assemblies on gold before evaluating subsequent device performances. © 2006 American Chemical Society;
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页码：13479 / 13489
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