TWO-DIMENSIONAL INTERFACIAL COLLOIDAL CRYSTALS
TWO-DIMENSIONAL INTERFACIAL COLLOIDAL CRYSTALS
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DOI：
10.1103/physrevlett.45.569
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发表时间：
1980-01-01
影响因子：
8.6
通讯作者：
PIERANSKI, P
中科院分区：
文献类型：
--
作者：
PIERANSKI, P
聚苯乙烯球（直径 2450 Å）被困在水/空气界面的表面能量井中。由于电荷分布的不对称性，电偶极子与每个界面颗粒相关联。偶极-偶极排斥相互作用将聚苯乙烯球组织成二维三角形晶格。这种界面胶体晶体的直接显微镜观察是首次报道。
Polystyrene spheres (2450 Å in diameter) are trapped in a surface energy well at water/air interface. Because of asymmetry of charge distribution, electrical dipoles are associated with each interfacial particle. The dipole-dipole repulsive interactions organize the polystyrene spheres into a two-dimensional triangular lattice. The direct microscopic observations of such an interfacial colloidal crystal are reported for the first time.