Effect of the number ratio and size ratio on the formation of binary superlattices assembled from polymer-tethered spherical nanoparticles of two sizes
作者：Jinlan Li, Xin Yu, Jianing Zhang, Jing Jin, Yanxiong Pan, Xiangling Ji, Wei Jiang
关键字：二元超晶格, 球形纳米粒子, 数量比, 尺寸比, 乳液受限自组装
论文来源：期刊
具体来源：Nanoscale, 2025, 17(2), 797-802
发表时间：2025年
摘要：具有独特构型的二元超晶格（BNSLs）因两种纳米粒子之间的相互作用而备受关注，在传感、电子和光学领域具有潜在应用。本文通过乳液受限自组装，使两种核直径不同的聚苯乙烯（PS）接枝球形金纳米粒子自发组装成BNSLs。通过调节两种NPs的数量比和尺寸比，制备了具有特定化学计量比和粒子间距的BNSLs。此外，引入长配体后，根据AuNPs上接枝聚合物链之间的相互作用，二元NPs可发生宏观相分离或混合在一起。最后，PS接枝AuNPs为制造多功能BNSLs提供了更多可能性。
Abstract：Binary superlattices (BNSLs) with unique configurations are of great interest, attributed to the interaction between two kinds of nanoparticles, providing potential applications in sensing, electronic and optical fields. Here, polystyrene (PS) tethered spherical gold nanoparticles (AuNPs) with two core diameters spontaneously assembled into BNSLs via emulsion-confined self-assembly. BNSLs with specific stoichiometry and interparticle gaps of the NPs are prepared by tuning the number and size ratios of the two types of NPs. Moreover, after introducing long ligands, binary NPs are separated into macrophase separation or mixed together, depending on the interaction between polymer chains tethered to the AuNPs. Finally, PS-tethered AuNPs provide more possibilities for fabricating multifunctional BNSLs.
论文链接：https://doi.org/10.1039/d4nr04032e