Layer-by-layer growth of binary colloidal crystals

被引:348
作者
Velikov, KP
Christova, CG
Dullens, RPA
van Blaaderen, A
机构
[1] Univ Utrecht, Debye Inst, NL-3584 CC Utrecht, Netherlands
[2] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands
关键词
D O I
10.1126/science.1067141
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We report the growth of binary colloidal crystals with control over the crystal orientation through a simple layer-by-layer process, Well-ordered single binary colloidal crystals with a stoichiometry of large (L) and small (S) particles of LS2 and LS were generated. In addition, we observed the formation of an LS3 superstructure. The structures formed as a result of the templating effect of the first layer and the forces exerted by the surface tension of the drying liquid. By using spheres of different composition, one component can be selectively removed, as is demonstrated in the growth of a hexagonal non-close-packed colloidal crystal.
引用
收藏
页码:106 / 109
页数:4
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