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Qualitative and Quantitative Analysis of Crystallographic Defects Present in 2D Colloidal Sphere Arrays

descriptionPublicationkeyboard_double_arrow_right Article 30 Nov 2011 Spain Publisher:American Chemical Society (ACS)Journal:Langmuir, volume 28, pages 161-167 (issn: 0743-7463, eissn: 1520-5827,

Authors: Canalejas-Tejero, Víctor; Ibisate, M.; Golmayo, Dolores; Blanco Montes, Álvaro; López, Cefe;

doi: 10.1021/la203160d

pmid: 22070340

handle: 10261/77941

Qualitative and Quantitative Analysis of Crystallographic Defects Present in 2D Colloidal Sphere Arrays

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Abstract

In this work, we present a study of the typical spontaneous defects present in self-assembled colloidal monolayers grown from polystyrene and silica microspheres. The quality of two-dimensional crystals from different colloidal suspensions of beads around 1 μm in diameter has been studied qualitatively and quantitatively, evaluated in 2D hexagonal arrays at different scales through Fourier analysis of SEM images and optical characterization. The crystallographic defects are identified to better understand their origin and their effects on the crystal quality, as well as to find the best conditions colloidal suspensions must fulfill to achieve optimal quality samples.

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Spain

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