In-situ AFM observation of the formation process of layer-by-layer sequential adsorption film

Takeshi Yamada, Seimei Shiratori

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Recently, layer-by-layer sequential adsorption technique is applied to many devices. We reported that the thickness and the surface structure of the layer-by-layer sequential adsorption film using Poly (allylamine hydrochforide) (PAH) and Poly (acrylic acid) (PAA) were systematically controlled with nm scale order by changing pH of polyelectrolytes solution. In this study, we present the first observation results on the initial adsorption processes of polyelectrolytes to the substrate in solution by in-shu observation using an AFM. It was found that the surface structure was strongly effected by the previously formed under layer and the solution pH.

Original languageEnglish
Pages (from-to)289-292
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume370
Publication statusPublished - 2001

Fingerprint

carbopol 940
atomic force microscopy
Polyelectrolytes
Adsorption
Surface structure
adsorption
Allylamine
Polycyclic aromatic hydrocarbons
Acrylics
acrylic acid
polycyclic aromatic hydrocarbons
Acids
Substrates

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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