Formation of well-aligned thin films of rod-like nanoparticles via solvent evaporation : A simulation study
Formation of well-aligned thin films of rod-like nanoparticles via solvent evaporation : A simulation study
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通过溶剂蒸发形成排列良好的棒状纳米颗粒薄膜：模拟研究
DOI：
10.1143/apex.2.065002
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
and Y. Yamaguchi
中科院分区：
文献类型：
--
作者：
S. Ohta;S. Inasawa;O. Koike;M. Fujita;and Y. Yamaguchi
通过模拟研究了通过溶剂蒸发从棒状纳米颗粒的悬浮液形成薄膜。两种类型的初始纳米粒子配置进行了检查。由随机取向的棒状纳米颗粒的悬浮液，在溶剂蒸发后获得具有各种域和粗糙表面的薄膜。另一方面，当粒子被强带电时，它们自发地在悬浮液中排列，导致在完全干燥后具有光滑表面的良好排列的薄膜。除了纳米粒子在悬浮液中的初始构型外，垂直毛细作用力在这些薄膜的形成中起着重要作用。
Thin film formation from a suspension of rod-like nanoparticles via solvent evaporation was studied by simulation. Two types of initial nanoparticle configurations were examined. From a suspension of randomly oriented rod-like nanoparticles, a thin film with various domains and a rough surface was obtained after solvent evaporation. On the other hand, when particles were strongly charged, they spontaneously aligned in suspension, resulting in a well-aligned thin film with a smooth surface after complete drying. In addition to the initial configuration of nanoparticles in a suspension, the vertical capillary force plays an important role in the formation of these thin films.