Optimization of the feedback constant control for the mass-controlled layer-by-layer sequential adsorption technique for polyelectrolyte thin films

Autor:	Takahiro Ito, Yoshiki Okayama, Seimei Shiratori
Rok vydání:	2001
Předmět:	Materials science Layer by layer Metals and Alloys Surfaces and Interfaces Quartz crystal microbalance Polyelectrolyte Surfaces Coatings and Films Electronic Optical and Magnetic Materials Crystal Adsorption Ellipsometry Polymer chemistry Materials Chemistry Thin film Composite material Quartz
Zdroj:	Thin Solid Films. 393:132-137
ISSN:	0040-6090
DOI:	10.1016/s0040-6090(01)01058-6
Popis:	Mass-controlled layer-by-layer sequential adsorption process was newly developed for the fabrication of ultra-thin organic films formed by polyelectrolytes. A quartz crystal was attached to the arm of a robot and, using the quartz crystal microbalance (QCM) method, the frequency shifts during adsorption of the materials were monitored. By optimization of the feedback constant of the data acquired by QCM to the dipping time, high-quality self-assembled films were produced. From the cross-sectional images observed by TEM and thickness measurement carried out using an ellipsometer, it was found that the layer thickness was controlled with nm-scale accuracy.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aff0b1527ee86f411fd18a44516e3c35 https://doi.org/10.1016/s0040-6090(01)01058-6 Zobrazit plný text záznamu Full Text from ScienceDirect