Layer-by-layer growth of attractive binary colloidal particles

We investigate the two-dimensional (2D) colloidal structures formed by oppositely charged polystyrene monolayers grown layer-by-layer, where the electrostatic forces are recruited to assist in the packing of the layers. Our results show a transition through several 2D-superlattices to more close-pac...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1991. - 24(2008), 17 vom: 02. Sept., Seite 9273-8
1. Verfasser: Tan, Kwan Wee (VerfasserIn)
Weitere Verfasser: Li, Guang, Koh, Yaw Koon, Yan, Qingfeng, Wong, C C
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a We investigate the two-dimensional (2D) colloidal structures formed by oppositely charged polystyrene monolayers grown layer-by-layer, where the electrostatic forces are recruited to assist in the packing of the layers. Our results show a transition through several 2D-superlattices to more close-packed structures with increasing ionic strength. The observed geometrical packing constraints of the 2D-superlattice structures agree well with the estimated Debye screening length of the electric double layer. By tuning interaction forces between charged colloids, electrostatic interactions could enhance the template-directed self-assembly process to achieve more complex and diverse structures 
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700 1 |a Li, Guang  |e verfasserin  |4 aut 
700 1 |a Koh, Yaw Koon  |e verfasserin  |4 aut 
700 1 |a Yan, Qingfeng  |e verfasserin  |4 aut 
700 1 |a Wong, C C  |e verfasserin  |4 aut 
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