超晶格
纳米颗粒
纳米孔
材料科学
自组装
纳米尺度
纳米技术
多孔性
蚀刻(微加工)
二进制数
化学工程
图层(电子)
光电子学
复合材料
工程类
算术
数学
作者
Udayabhaskararao Thumu,Thomas Altantzis,Lothar Houben,Marc Coronado‐Puchau,Judith Langer,Ronit Popovitz‐Biro,Luis M. Liz‐Marzán,Lela Vuković,Petr Král,Sara Bals,Rafał Klajn
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2017-10-27
卷期号:358 (6362): 514-518
被引量:121
标识
DOI:10.1126/science.aan6046
摘要
Self-assembly of inorganic nanoparticles has been used to prepare hundreds of different colloidal crystals, but almost invariably with the restriction that the particles must be densely packed. Here, we show that non-close-packed nanoparticle arrays can be fabricated through the selective removal of one of two components comprising binary nanoparticle superlattices. First, a variety of binary nanoparticle superlattices were prepared at the liquid-air interface, including several arrangements that were previously unknown. Molecular dynamics simulations revealed the particular role of the liquid in templating the formation of superlattices not achievable through self-assembly in bulk solution. Second, upon stabilization, all of these binary superlattices could be transformed into distinct "nanoallotropes"-nanoporous materials having the same chemical composition but differing in their nanoscale architectures.
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