Growth kinetics in self-assembling monolayers: a unique adsorption mechanism

SURFACE SCIENCE

卷:397

Letter

Eberhardt, A ; Fenter, P ; Eisenberger, P

关键词: adsorption kinetics;    alkanethiols;    chemisorption;    gold;    mercaptans;    self-assembly;    X-ray scattering, diffraction, and reflection;   

DOI  :  10.1016/S0039-6028(97)00873-X

来源: Elsevier

【 摘 要 】

The adsorption kinetics of decanethiol (CH3(CH2)(9)SH) self-assembled from vapor on single crystal Au(111) surfaces have been investigated using grazing incidence X-ray diffraction. These in situ studies demonstrate the existence of two distinct adsorption mechanisms, including a unique associative mechanism in which the growth rate increases quadratically with the molecular impingement rate. These observations indicate that the self-assembly kinetics in these membrane-like films are more complex than previous studies have suggested. (C) 1998 Elsevier Science B.V.

【 授权许可】

Free