Journal
SURFACE SCIENCE
Volume 604, Issue 13-14, Pages 1166-1172Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.susc.2010.03.032
Keywords
Indium arsenide; Carboxylic acid; Self-assembly X-ray photoelectron spectroscopy; Oxidation; Thermal desorption
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Self-assembled monolayers (SAMs) of octadecanoic acid (ODA) on oxidized InAs were prepared and characterized, and their stability in ambient, solvents and against heating was investigated. Results confirm the formation of densely packed, well-ordered monolayers. Storage of ODA SAMs in ambient does not lead to any noticeable degradation for months. ODA can be rinsed off the surface by some organic solvents, but SAMs are stable in water. ODA SAMs are stable up to 120 degrees C in ambient, above which temperature ODA starts to desorb. Above 200 degrees C, oxidation of the InAs substrate occurs. (C) 2010 Elsevier B.V. All rights reserved.
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