TY - JOUR
T1 - Drying-mediated hierarchical self-assembly of nanoparticles
T2 - A dynamical coarse-grained approach
AU - Kletenik-Edelman, Orly
AU - Ploshnik, Elina
AU - Salant, Asaf
AU - Shenhar, Roy
AU - Banin, Uri
AU - Rabani, Eran
PY - 2008/3/27
Y1 - 2008/3/27
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=47049127132&partnerID=8YFLogxK
U2 - 10.1021/jp709583u
DO - 10.1021/jp709583u
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AN - SCOPUS:47049127132
SN - 1932-7447
VL - 112
SP - 4498
EP - 4506
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 12
ER -