TY - JOUR A1 - Sulyanova, Elena A. A1 - Shabalin, Anatoly A1 - Zozulya, Alexey V. A1 - Meijer, Janne-Mieke A1 - Dzhigaev, Dmitry A1 - Gorobtsov, Oleg A1 - Kurta, Ruslan P. A1 - Lazarev, Sergey A1 - Lorenz, Ulf A1 - Singer, Andrej A1 - Yefanov, Oleksandr A1 - Zaluzhnyy, Ivan A1 - Besedin, Ilya A1 - Sprung, Michael A1 - Petukhov, Andrei V. A1 - Vartanyants, Ivan A. T1 - Structural Evolution of Colloidal Crystal Films in the Process of Melting Revealed by Bragg Peak Analysis JF - Langmuir N2 - 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. Y1 - 2015 U6 - https://doi.org/10.1021/la504652z SN - 0743-7463 VL - 31 IS - 19 SP - 5274 EP - 5283 PB - American Chemical Society CY - Washington ER -