Drying-mediated hierarchical self-assembly of nanoparticles: A dynamical coarse-grained approach

被引：39

作者：

Kletenik-Edelman, Orly ^{[2
]}

Ploshnik, Elina ^{[1
]}

Salant, Asaf ^{[1
]}

Shenhar, Roy ^{[1
]}

Banin, Uri ^{[1
]}

Rabani, Eran ^{[2
]}

机构：

[1] Hebrew Univ Jerusalem, Inst Chem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

[2] Tel Aviv Univ, Sackler Fac Exact Sci, Sch Chem, IL-69978 Tel Aviv, Israel

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 12期

关键词：

D O I：

10.1021/jp709583u

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A coarse-grained lattice gas model is developed to study the drying-mediated self-assembly of nanoparticles on diblock copolymer substrates. The model describes the nanoparticles, the solvent and the diblock copolymer on length scales that are typical to the solvent bulk correlation length. Monte Carlo simulation techniques are used to delineate the various mechanisms of this out-of-equilibrium hierarchical self-assembly. Several different assembly scenarios corresponding to different selectivity of the nanoparticles/liquid/substrate are discussed. The role of surface tension, evaporation rate, diffusion rate, nanoparticle, coverage, and diblock copolymer periodicity is explored. Optimal conditions to form a stripe phase of nanoparticles along with predictions of novel 3D structures resulting from high nanoparticle and solvent selectivity are described.

引用

页码：4498 / 4506

页数：9

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