首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Pattern formation of colloidal suspensions by dip‐coating: An in situ grazing incidence X‐ray scattering study
Authors:J Perlich  M Schwartzkopf  V Körstgens  D Erb  J F H Risch  P Müller‐Buschbaum  R Röhlsberger  S V Roth  R Gehrke
Institution:1. HASYLAB, DESY, Notkestr. 85, 22603 Hamburg, Germany;2. Technische Universit?t München, Lehrstuhl für Funktionelle Materialien, Physik‐Department, James‐Franck‐Str. 1, 85748 Garching, Germany
Abstract:Dip‐coating of a colloidal suspension is investigated in situ with microbeam grazing incidence small‐angle X‐ray scattering. We focus on the real‐time monitoring of a vertical dip‐coating process yielding insights into structural changes during pattern formation of the thin film. With the selected configuration a fixed spot on the sample surface is probed and the structural information at the time the contact line passes this spot is obtained, hence revealing the structure at the vicinity of the flowing meniscus owing to the microfocused beam. After dip‐coating the morphology is analyzed with atomic force microscopy, yielding real space information about the arrangement of individual nanoparticles at the film surface.
image

Keywords:GISAXS  dip‐coating  colloids  X‐ray scattering  polymers  nanoparticles
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号