137 citations · 636 across the 26 of their papers we have counts for
26 papers
Shear Unfreezing Explains Yielding, Plasticity and Neck Initiation of Glassy Polymers
Peihan Lyu, Zhaoyu Ding, Masao Doi +1
Yielding, plasticity, and necking are central to the mechanical performance of materials, yet a concise unified physical picture of how these nonlinear responses arise remains lack…
Polymer-modulated evaporation flow enables scalable self-assembly of highly aligned nanowires
Liyiming Tao, Zechao Jiang, Shiyuan Hu +7
Highly aligned nanowire networks are essential for enabling anisotropic optical, electrical, and sensing functionalities in next-generation devices. However, achieving such alignme…
Uniform deposition of particles in large scale by drying of binary droplets
Zechao Jiang, Liyiming Tao, Xiuyuan Yang +3
The evaporation of liquid droplets often results in a ring-like deposition pattern of particles, presenting challenges for applications requiring highly uniform patterns. Despite e…
Design and Fabrication of Nano-Particles with Customized Properties using Self-Assembly of Block-Copolymers
Changhuang Huang, Kechun Bai, Yanyan Zhu +2
Functional nanoparticles (NPs) have gained significant attention as a promising application in various fields, including sensor, smart coating, drug delivery, and more. Here, we pr…
A Unified Model for Non-Fickian Diffusion and Anomalous Swelling of Glassy Polymer Gels
Peihan Lyu, Zhaoyu Ding, Masao Doi +1
A sheet of glassy polymers placed in a solvent shows swelling behaviors quite different from that of soft polymers (rubbers and gels). (1) Non-Fickian diffusion (called case II dif…
The Process-Directed Self-Assembly of Block Copolymer Particles
Yanyan Zhu, Changhang Huang, Liangshun Zhang +2
The kinetic paths of structural evolution and formation of block copolymer (BCP) particles are explored using dynamic self-consistent field theory (DSCFT). It is shown that the pro…
The Chain Flexibility Effects on the Self-assembly of Diblock Copolymer in Thin Film
Mingyang Chen, Yuguo Chen, Yanyan Zhu +3
We investigate the effects of chain flexibility on the self-assembly behavior of symmetric diblock copolymers (BCPs) when they are confined as a thin film between two surfaces. Emp…
Epitaxial growth of bilayer Bi(110) on two-dimensional ferromagnetic Fe3GeTe2
Yilian Xi, Mengting Zhao, Haifeng Feng +6
Heterostructures of two-dimensional (2D) layered materials with selective compositions play an important role in creating novel functionalities. Effective interface coupling betwee…
Contact Angle of an Evaporating Droplet of Binary Solution on a Super Wetting Surface
Mengmeng Wu, Masao Doi, Xingkun Man
We study the dynamics of contact angle of a droplet of binary solution evaporating on a super wetting surface. Recent experiments show that although equilibrium contact angle of su…
Swelling Dynamics of a Disk-Shaped Gel
Xingkun Man, Masao Doi
When a gel absorbs solvent from surrounding, stress field is created in the gel, and this causes complex dynamics of the swelling behavior. Here we study this effect for disk-shape…
Formation of Diblock Copolymer Nanoparticles: Theoretical Aspects
Yanyan Zhu, Bin Zheng, David Andelman +1
We explore the shape and internal structure of diblock copolymer (di-BCP) nanoparticles (NPs) by using the Ginzburg-Landau free-energy expansion. The self-assembly of di-BCP lamell…
Enhanced electro-actuation in dielectric elastomers: the non-linear effect of free ions
Bin Zheng, Xingkun Man, David Andelman +1
Plasticized poly(vinyl chloride) (PVC) is a jelly-like soft dielectric material that attracted substantial interest recently as a new type of electro-active polymers. Under electri…
Defect removal by solvent vapor annealing in thin films of lamellar diblock copolymers
Xinpeng Xu, Xingkun Man, Masao Doi +2
Solvent vapor annealing (SVA) is known to be a simple, low-cost and highly efficient technique to produce defect-free diblock copolymer (BCP) thin films. Not only can the solvent w…
Effect of Sinusoidal Surface Roughness and Energy on the Orientation of Cylinder-Forming Block Copolymer Thin Films
Yanyan Zhu, Karim Aissou, David Andelman +1
We explore the relative stability of three possible orientations of cylinder-forming di-block copolymer on a sinusoidally corrugated substrate. The cylinders can be aligned either…
Multi-Ring Deposition Pattern of Drying Droplets
Mengmeng Wu, Xingkun Man, Masao Doi
We propose a theory for the multi-ring pattern of the deposits that are formed when droplets of suspension are dried on a substrate. Assuming a standard model for the stick-slip mo…
Orienting thin films of lamellar block copolymer: the combined effect of mobile ions and electric field
B. Zheng, X. -K. Man, Z. C. Ou-Yang +2
We study thin films of A/B diblock copolymer in a lamellar phase confined between two parallel plates (electrodes) that impose a constant voltage across the film. The weak-segregat…
Structure Formation in Soft Matter Solutions Induced by Solvent Evaporation
Jiajia Zhou, Xingkun Man, Ying Jiang +1
Solvent evaporation in soft matter solutions (solutions of colloidal particles, polymers and their mixtures) is an important process in material making and in printing and coating…
Vapor-Induced Motion of Liquid Droplets on an Inert Substrate
Xingkun Man, Masao Doi
Evaporating droplets are known to show complex motion that has conventionally been explained by the Marangoni effect (flow induced by the gradient of surface tension). Here, we sho…
Defect-free Perpendicular Diblock Copolymer Films: The Synergistic Effect of Surface Topography and Chemistry
Xingkun Man, Pan Zhou, Jiuzhou Tang +2
We propose a direct self-assembly mechanism towards obtaining defect-free perpendicular lamellar phases of diblock copolymer (BCP) thin films. In our numerical study, a thin BCP fi…
Ring to Mountain Transition in Deposition Pattern of Drying
Xingkun Man, Masao Doi
When a droplet containing a non-volatile component is dried on a substrate, it leaves a ringlike deposit on the substrate. We propose a theory which predicts the deposit distributi…
Lamellar Diblock Copolymers on Rough Substrates: Self-consistent Field Theory Studies
Xingkun Man, Jiuzhou Tang, Pan Zhou +2
We present numerical calculations of lamellar phases of di-block copolymers (BCP) confined between two surfaces, where the top surface is flat and the bottom one is corrugated. The…
Coherent States Formulation of Polymer Field Theory
Xingkun Man, Kris T. Delaney, Michael C. Villet +2
We introduce a stable and efficient complex Langevin (CL) scheme to enable the first numerical simulations of the coherent-states (CS) formulation of polymer field theory. In contr…
Tailoring Nanostructures Using Copolymer Nanoimprint Lithography
Pascal Thebault, Stefan Niedermayer, Stefan Landis +6
Finding affordable ways of generating high-density ordered nanostructures that can be transferred to a substrate is a major challenge for industrial applications like memories or o…
Block Copolymer Films with Free Interfaces: Ordering by Nano-Patterned Substrates
Xingkun Man, David Andelman, Henri Orland
We study block copolymers (BCP) on patterned substrates, where the top polymer film surface is not constrained but is a free interface that adapts its shape self-consistently. In p…