54 citations · 203 across the 17 of their papers we have counts for
18 papers
From suspensions to porous multilayers: microstructure formation and particle packing in drying colloidal films
Qingguang Xie, Jens Harting
Drying particle suspensions is widely used to assemble particles and to fabricate porous functional layers for various applications, in which microstructural properties critically…
Coalescence-induced alignment of anisotropic particles in drying sessile droplets
Johannes Schöttner, Qingguang Xie, Jens Harting
Alignment of anisotropic particles strongly governs the functional properties of printed materials, yet most studies have focused on particle alignment in single evaporating drople…
Evaporation-Driven Nanowire Self-Assembly in an Elongated Droplet
Johannes Schöttner, Qingguang Xie, Jens Harting
Drying of nanowire-laden elongated droplets is a ubiquitous process in printed electronics fabrication, where the resulting deposition pattern critically determines device performa…
Free-Energy Analysis of Bubble Nucleation on Electrocatalytic Surfaces
Qingguang Xie, Paolo Malgaretti, Othmane Aouane +2
Bubble nucleation at catalyst surfaces plays a critical role in the operation of electrolyzers. However, achieving controlled bubble nucleation remains challenging due to limited u…
Simulations of inertial liquid-lens coalescence with the pseudopotential lattice Boltzmann method
Qingguang Xie, Jens Harting
The coalescence of liquid lenses is relevant in various applications, including inkjet printing and fog harvesting. However, the dynamics of liquid-lens coalescence have been relat…
Self-assembled filament layers in drying sessile droplets: from morphology to electrical conductivity
Johannes Schöttner, Qingguang Xie, Gaurav Nath +1
Controlling the deposition of filaments, such as nanowires and nanotubes, from evaporating droplets is critical for the performance of emerging technologies like flexible sensors a…
Effect of particle and substrate wettability on evaporation-driven assembly of colloidal monolayers
Qingguang Xie, Tian Du, Christoph J. Brabec +1
Assembled monolayers of colloidal particles are crucial for various applications, including opto-electronics, surface engineering, as well as light harvesting, and catalysis. A com…
Viscous to inertial coalescence of liquid lenses: a lattice Boltzmann investigation
Thomas Scheel, Qingguang Xie, Marcello Sega +1
Liquid lens coalescence is an important mechanism involved in many industrial and scientific applications. It has been investigated both theoretically and experimentally, yet it is…
Equilibrium orientation and adsorption of an ellipsoidal Janus particle at a fluid-fluid interface
Florian Günther, Qingguang Xie, Jens Harting
We investigate the equilibrium orientation and adsorption process of a single, ellipsoidal Janus particle at a fluid-fluid interface. The particle surface comprises equally sized p…
Controllable Capillary Assembly of Magnetic Ellipsoidal Janus Particles into Tunable Rings, Chains and Hexagonal Lattices
Qingguang Xie, Jens Harting
Colloidal assembly at fluid interfaces has a great potential for the bottom-up fabrication of novel structured materials. However, challenges remain in realizing controllable and t…
Self-Similar Liquid Lens Coalescence
Michiel A. Hack, Walter Tewes, Qingguang Xie +4
A basic feature of liquid drops is that they can merge upon contact to form a larger drop. In spite of its importance to various applications, drop coalescence on pre-wetted substr…
Direct Assembly of Magnetic Janus Particles at a Droplet Interface
Qingguang Xie, Gary B. Davies, Jens Harting
Self-assembly of nanoparticles at fluid-fluid interfaces is a promising route to fabricate functional materials from the bottom-up. However, directing and controlling particles int…
Optimal motion of triangular magnetocapillary swimmers
Alexander Sukhov, Sebastian Ziegler, Qingguang Xie +7
A system of ferromagnetic particles trapped at a liquid-liquid interface and subjected to a set of magnetic fields (magnetocapillary swimmers) is studied numerically using a hybrid…
The effect of the liquid layer thickness on the dissolution of immersed surface droplets
Qingguang Xie, Jens Harting
Droplets on a liquid-immersed solid surface are key elements in many applications, such as high-throughput chemical analysis and droplet-templated porous materials. Such surface dr…
From dot to ring: the role of friction on the deposition pattern of a drying colloidal suspension droplet
Qingguang Xie, Jens Harting
The deposition of particles on a substrate by drying a colloidal suspension droplet is at the core of applications ranging from traditional printing on paper to printable electroni…
Diffusion dominated evaporation in multicomponent lattice Boltzmann simulations
Dennis Hessling, Qingguang Xie, Jens Harting
We present a diffusion dominated evaporation model using the popular pseudopotential multicomponent lattice Boltzmann method introduced by Shan and Chen. With an analytical computa…
Controlled Capillary Assembly of Magnetic Janus Particles at Fluid-Fluid Interfaces
Qingguang Xie, Gary B. Davies, Jens Harting
Capillary interactions can be used to direct assembly of particles adsorbed at fluid-fluid interfaces. Precisely controlling the magnitude and direction of capillary interactions t…
Tunable Dipolar Capillary Deformations for Magnetic Janus Particles at Fluid-Fluid Interfaces
Qingguang Xie, Gary B. Davies, Florian Günther +1
Janus particles have attracted significant interest as building blocks for complex materials in recent years. Furthermore, capillary interactions have been identified as a promisin…