writer：Xuan Yue, Jinlan Li, Nan Yan, Wei Jiang
keywords：二元超晶格, 纳米立方体, 纳米球, 熵驱动, 聚合物修饰, 自组装
source：期刊
specific source：Small, 2023, 19(24), 2207984
Issue time：2023年

摘要：金属纳米粒子（NPs）的可控自组装因独特的光学和电学性质而受到广泛关注。与单组分超晶格相比，含两种不同形状或性质NPs的二元纳米粒子超晶格（BNSLs）因组分间耦合或协同效应产生新的集成性质而更具吸引力。本文研究了由聚合物修饰纳米立方体和纳米球自组装的熵驱动二元超晶格。研究表明，聚合物链的构象熵以及纳米立方体与纳米球的混合熵是决定二元超晶格形成的两个重要参数。通过调控NPs的组成、尺寸、形状和混合比等结构参数，可精确调节BNSLs中各组分的排列，为制备功能材料提供新途径。

Abstract：Recently, the controllable self-assembly of metal nanoparticles (NPs) into functional superstructures has attracted much attention because of their unique optical and electrical properties. Compared with single-component superlattices, binary nanoparticle superlattices (BNSLs) containing two types of NPs with different shapes or properties have attracted significant attention because BNSLs possess new integrated properties originating from the coupling or synergistic effect of the nanoparticle components with distinct properties. The arrangement of each NP component in the BNSLs can be precisely adjusted by varying the structural parameters of the metal NPs, such as composition, size, shape, and mixing ratio. This study provides an entropy-driven route to fabricate binary superlattices assembled from polymer-tethered nanocubes and nanospheres.

论文链接：https://doi.org/10.1002/smll.202207984