| Literature DB >> 25594683 |
Elena A Sulyanova1,2, Anatoly Shabalin1, Alexey V Zozulya1, Janne-Mieke Meijer3, Dmitry Dzhigaev1,4, Oleg Gorobtsov1,5, Ruslan P Kurta6, Sergey Lazarev1,7, Ulf Lorenz8, Andrej Singer9, Oleksandr Yefanov10, Ivan Zaluzhnyy1,4, Ilya Besedin1,4, Michael Sprung1, Andrei V Petukhov3, Ivan A Vartanyants1,4.
Abstract
In situ X-ray diffraction studies of structural evolution of colloidal crystal films formed by polystyrene spherical particles upon incremental heating are reported. The Bragg peak parameters, such as peak position, integrated intensity, and radial and azimuthal widths were analyzed as a function of temperature. A quantitative study of colloidal crystal lattice distortions and mosaic spread as a function of temperature was carried out using Williamson-Hall plots based on mosaic block model. The temperature dependence of the diameter of polystyrene particles was obtained from the analysis of Bragg peaks, and the form factor contribution extracted from the diffraction patterns. Four stages of structural evolution in a colloidal crystal upon heating were identified. Based on this analysis, a model of the heating and melting process in the colloidal crystal film is suggested.Entities:
Year: 2015 PMID： 25594683 DOI： 10.1021/la504652z
Source DB: PubMed Journal: Langmuir ISSN： 0743-7463 Impact factor: 3.882