Calculation of scattering-patterns of ordered nano- and mesoscale materials
Calculation of scattering-patterns of ordered nano- and mesoscale materials
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DOI：
10.1016/j.cis.2010.12.003
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发表时间：
2011-03-15
影响因子：
15.6
通讯作者：
Perlich, J.
中科院分区：
文献类型：
--
作者：
Foerster, S.;Fischer, S.;Perlich, J.
导出有序纳米和介观材料的散射图案的分析表达式，并将其与测量的散射图案进行比较。考虑的有序结构包括球体（fcc、bcc、hcp、Sc 和 bct）、圆柱体（六角形和方形）、片层 (lam) 和囊泡，以及双连续立方结构（Ia3d、Pn3m 和 Im3m）。这些表达式考虑了晶胞尺寸、颗粒尺寸和尺寸分布、晶格点偏差、有限域尺寸、取向分布、核/壳结构以及各种峰形状。这些表达式可以定量描述、建模甚至拟合有序或定向胶束溶液、溶致相、嵌段共聚物、胶体溶液、纳米复合材料、光子晶体以及介孔材料的测量的 SAXS 和 SANS 模式。 (C) 2011 年由 Elsevier B.V. 出版
Analytical expressions for the scattering patterns of ordered nano- and mesoscopic materials are derived and compared to measured scattering patterns. Ordered structures comprising spheres (fcc, bcc, hcp, Sc, and bct), cylinders (hex and sq), lamellae (lam) and vesicles, as well as bicontinuous cubic structures (Ia3d, Pn3m, and Im3m) are considered. The expressions take into account unit cell dimensions, particle sizes and size distributions, lattice point deviations, finite domain sizes, orientational distributions, core/shell-structures as well a variety of peak shapes. The expressions allow to quantitatively describe, model and even fit measured SAXS and SANS-patterns of ordered or oriented micellar solutions, lyotropic phases, block copolymers, colloidal solutions, nanocomposites, photonic crystals, as well as mesoporous materials. (C) 2011 Published by Elsevier B.V.