Hierarchically self-assembled hexagonal honeycomb and kagome superlattices of binary 1D colloids.
Hierarchically self-assembled hexagonal honeycomb and kagome superlattices of binary 1D colloids.
复制标题
分层自组装的六角蜂窝和二进制1D胶体的Kagome超级晶格。
DOI：
10.1038/s41467-017-00512-9
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发表时间：
2017-08-25
影响因子：
16.6
通讯作者：
Choi SM
中科院分区：
文献类型：
--
作者：
Lim SH;Lee T;Oh Y;Narayanan T;Sung BJ;Choi SM
二元纳米颗粒超晶格的合成因其广泛的潜在应用而引起了人们的关注。然而，这对于一维纳米颗粒系统仍然具有挑战性。在本研究中，我们研究了不同直径的一维纳米粒子在六角形堆积的圆柱形胶束系统中的堆积行为，并证明可以通过调整粒径和混合比来获得两种不同对称性的二元一维纳米粒子超晶格。一维纳米颗粒的六边形阵列嵌入胶束圆柱体的蜂窝晶格（对于AB2型）或kagome晶格（对于AB3型）中。自由体积熵的最大化被认为是超晶格形成的主要驱动力，我们的理论自由能计算很好地支持了这一点。我们的方法提供了一种制造二元一维纳米颗粒超晶格的途径，并且可能适用于无机一维纳米颗粒系统。当粒子类型分离成相时，很少观察到一维粒子的二元混合物协同自组装成二元超晶格。在这里，作者设计了一个避免相分离的系统，通过简单地调整粒径和混合物组成来获得具有不同对称性的二元超晶格。
Synthesis of binary nanoparticle superlattices has attracted attention for a broad spectrum of potential applications. However, this has remained challenging for one-dimensional nanoparticle systems. In this study, we investigate the packing behavior of one-dimensional nanoparticles of different diameters into a hexagonally packed cylindrical micellar system and demonstrate that binary one-dimensional nanoparticle superlattices of two different symmetries can be obtained by tuning particle diameter and mixing ratios. The hexagonal arrays of one-dimensional nanoparticles are embedded in the honeycomb lattices (for AB2 type) or kagome lattices (for AB3 type) of micellar cylinders. The maximization of free volume entropy is considered as the main driving force for the formation of superlattices, which is well supported by our theoretical free energy calculations. Our approach provides a route for fabricating binary one-dimensional nanoparticle superlattices and may be applicable for inorganic one-dimensional nanoparticle systems. Binary mixtures of 1D particles are rarely observed to cooperatively self-assemble into binary superlattices, as the particle types separate into phases. Here, the authors design a system that avoids phase separation, obtaining binary superlattices with different symmetries by simply tuning the particle diameter and mixture composition.
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影响因子：
8.6
作者：
Abbas, Sayeed;Lodge, Timothy P.
通讯作者：
Lodge, Timothy P.
影响因子：
64.8
作者：
Adams, M;Dogic, Z;Fraden, S
通讯作者：
Fraden, S
影响因子：
8.6
作者：
BARTLETT, P;OTTEWILL, RH;PUSEY, PN
通讯作者：
PUSEY, PN
影响因子：
4.4
作者：
COTTIN, X;MONSON, PA
通讯作者：
MONSON, PA
DOI：
10.1080/13642819308215284
发表时间：
1993-07-01
期刊：
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES
影响因子：
--
作者：
LIKOS, CN;HENLEY, CL
通讯作者：
HENLEY, CL