Growth of two-dimensional dodecagonal colloidal quasicrystals: Particles with isotropic pair interactions with two length scales vs. patchy colloids with preferred binding angles

Gemeinhardt, Anja; Martinsons, M.; Schmiedeberg, Michael

doi:10.1140/epje/i2018-11737-1

Cited by 14 publications

(33 citation statements)

References 61 publications

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“…Simulation algorithm. Simulations were performed with a model similar to that used in a previous study 22 . The difference from the previous study was that the inertial term in the Langevin equation was not neglected in our study.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, quasicrystals have also been created in soft material systems [6][7][8] such as colloidal systems 9 , micellar systems 10,11 , polymer melts [12][13][14] , and DNA motifs 15,16 . Quasicrystal formation have been numerically simulated, [17][18][19][20][21][22][23] using simple models. When the Lennard-Jones-Gauss (LJG) potential, which has two minima, is used as the interaction potential [20][21][22] , decagonal or dodecagonal quasicrystals are created by controlling parameters at high temperature.…”

Section: Introductionmentioning

confidence: 99%

“…Quasicrystal formation have been numerically simulated, [17][18][19][20][21][22][23] using simple models. When the Lennard-Jones-Gauss (LJG) potential, which has two minima, is used as the interaction potential [20][21][22] , decagonal or dodecagonal quasicrystals are created by controlling parameters at high temperature.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Impurities on a Two-Dimensional Dodecagonal Quasicrystal

M¹,

Sato²

2021

Preprint

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Langevin dynamics simulations are performed to examine how impurities affect two-dimensional dodecagonal quasicrystals. We assumed that the interaction potential between two particles is the Lennard-Jones-Gauss potential if at least one of these particles is a matrix particle and that the interaction potential between two impurities is the Lennard-Jones potential. Matrix particles and impurities impinge with constant rates on the substrate created by a part of a dodecagonal quasicrystal consisting of square and triangular tiles. The dependences of the twelve-fold rotational order and the number of shield-like tiles on the impurity density are examined after sufficient solid layers are grown. While the change in the twelve-fold rotational symmetry is small, the number of shield-like tiles in the solid increases greatly with increasing impurity density.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Impurities on a Two-Dimensional Dodecagonal Quasicrystal

M¹,

Sato²

2021

Preprint

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“…The same group also suggests through rational design of patch shape and symmetry that triblock patchy particles can selectively crystallize into tetrastack lattice with unique photonic properties, and even a colloidal clathrate-like structure [149]. Other structures including icosahedra, tetrahedra, square pyramids [8], helical structures [150], quasicrystals of dodecagonal symmetry [35,151], and open lattices [152,143] (Figure 9a and b) with high structural selectivity over other polymorphs are studied (Figure 9c) [153]. Together with recent studies in mechanical and functional properties of the exotic structures formed as bottom-up [154,155], these theoretical studies have been paving ways to experimentally achieve novel functional nanostructures.…”

Section: Simulation Of Self-assembly Behaviors Of Patchy Nanoparticlesmentioning

confidence: 99%

Patchy Nanoparticle Synthesis and Self-Assembly

Kim¹,

Yao²,

Kalutantirige³

et al. 2020

Self-Assembly of Nanostructures and Patchy Nanoparticles

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Biological building blocks (i.e., proteins) are encoded with the information of target structure into the chemical and morphological patches, guiding their assembly into the levels of functional structures that are crucial for living organisms. Learning from nature, researchers have been attracted to the artificial analogues, “patchy particles,” which have controlled geometries of patches that serve as directional bonding sites. However, unlike the abundant studies of micron-scale patchy particles, which demonstrated complex assembly structures and unique behaviors attributed to the patches, research on patchy nanoparticles (NPs) has remained challenging. In the present chapter, we discuss the recent understandings on patchy NP design and synthesis strategies, and physical principles of their assembly behaviors, which are the main factors to program patchy NP self-assembly into target structures that cannot be achieved by conventional non-patched NPs. We further summarize the self-assembly of patchy NPs under external fields, in simulation, and in kinetically controlled assembly pathways, to show the structural richness patchy NPs bring. The patchy NP assembly is novel by their structures as well as the multicomponent features, and thus exhibits unique optical, chemical, and mechanical properties, potentially aiding applications in catalysts, photonic crystals, and metamaterials as well as fundamental nanoscience.

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Section: Simulation Of Self-assembly Behaviors Of Patchy Nanoparticlesmentioning

confidence: 99%

Self-Assembly of Nanostructures and Patchy Nanoparticles

Mehraeen¹

2020

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at Chicago. He received his M.Sc. and Ph.D. in Mechanical Engineering, both from Stanford University under the supervision of Andrew Spakowitz. For his Ph.D., he studied the impact of molecular elasticity on the behavior of semi-flexible polymers and protein self-assembly. As a postdoctoral scholar, he studied the impact of active layer morphology on bimolecular recombination losses in organic photovoltaics, and transition state theory under the supervision of Jean-Luc Bredas at Georgia Institute of Technology, and Jianshu Cao at MIT, respectively. He has published three books, more than 30 scientific papers, and served as a reviewer for major scientific journals. His current research focuses on applying molecular simulations, atomistic modeling, and density functional theory to address directed self-assembly of nanoparticles on templated surfaces, photochemistry of organic solar cells, and polymer and electrocatalyst design using machine learning and artificial intelligence.

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Growth of two-dimensional dodecagonal colloidal quasicrystals: Particles with isotropic pair interactions with two length scales vs. patchy colloids with preferred binding angles

Cited by 14 publications

References 61 publications

Effect of Impurities on a Two-Dimensional Dodecagonal Quasicrystal

Effect of Impurities on a Two-Dimensional Dodecagonal Quasicrystal

Patchy Nanoparticle Synthesis and Self-Assembly

Self-Assembly of Nanostructures and Patchy Nanoparticles

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