2D phase behaviors of colloidal ellipsoids and rods

In recent years, the shape of particles has emerged as a key factor influencing their self-assembly and phase behaviors. Understanding the phase behaviors of systems containing shape anisotropic particles remains challenging. In this mini-review, we will summarize our recent experimental studies on...

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Main Authors: Huaguang Wang, Zexin Zhang, Xinsheng Sean Ling
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-10-01
Series:Frontiers in Physics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphy.2022.1043983/full
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author Huaguang Wang
Zexin Zhang
Zexin Zhang
Xinsheng Sean Ling
author_facet Huaguang Wang
Zexin Zhang
Zexin Zhang
Xinsheng Sean Ling
author_sort Huaguang Wang
collection DOAJ
description In recent years, the shape of particles has emerged as a key factor influencing their self-assembly and phase behaviors. Understanding the phase behaviors of systems containing shape anisotropic particles remains challenging. In this mini-review, we will summarize our recent experimental studies on the phase behaviors of colloidal systems in which all or part of particles have anisotropic shapes. We focus on two types of shape anisotropic particles, ellipsoids and rods. In particular, it was found that 1) in equilibrium, the anisotropic particles form a nematic phase in 2D, 2) when quenched, they can form a stable glassy state with a two-step glass transition, and 3) when they are dispersed as impurities in a 2D colloidal crystal of spheres, they can destroy the 2D crystal phase. We will discuss the current challenges in the field.
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spelling doaj.art-60c3efe6335847b88b4a63cf4750cec82022-12-22T04:13:30ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-10-011010.3389/fphy.2022.104398310439832D phase behaviors of colloidal ellipsoids and rodsHuaguang Wang0Zexin Zhang1Zexin Zhang2Xinsheng Sean Ling3College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, ChinaCollege of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, ChinaCenter for Soft Condensed Matter Physics and Interdisciplinary Research and Institute for Advanced Study, Soochow University, Suzhou, ChinaDepartment of Physics, Brown University, Providence, RI, United StatesIn recent years, the shape of particles has emerged as a key factor influencing their self-assembly and phase behaviors. Understanding the phase behaviors of systems containing shape anisotropic particles remains challenging. In this mini-review, we will summarize our recent experimental studies on the phase behaviors of colloidal systems in which all or part of particles have anisotropic shapes. We focus on two types of shape anisotropic particles, ellipsoids and rods. In particular, it was found that 1) in equilibrium, the anisotropic particles form a nematic phase in 2D, 2) when quenched, they can form a stable glassy state with a two-step glass transition, and 3) when they are dispersed as impurities in a 2D colloidal crystal of spheres, they can destroy the 2D crystal phase. We will discuss the current challenges in the field.https://www.frontiersin.org/articles/10.3389/fphy.2022.1043983/fullcolloidsanisotropic shapeellipsoidsrodscrystalglass transition
spellingShingle Huaguang Wang
Zexin Zhang
Zexin Zhang
Xinsheng Sean Ling
2D phase behaviors of colloidal ellipsoids and rods
Frontiers in Physics
colloids
anisotropic shape
ellipsoids
rods
crystal
glass transition
title 2D phase behaviors of colloidal ellipsoids and rods
title_full 2D phase behaviors of colloidal ellipsoids and rods
title_fullStr 2D phase behaviors of colloidal ellipsoids and rods
title_full_unstemmed 2D phase behaviors of colloidal ellipsoids and rods
title_short 2D phase behaviors of colloidal ellipsoids and rods
title_sort 2d phase behaviors of colloidal ellipsoids and rods
topic colloids
anisotropic shape
ellipsoids
rods
crystal
glass transition
url https://www.frontiersin.org/articles/10.3389/fphy.2022.1043983/full
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AT zexinzhang 2dphasebehaviorsofcolloidalellipsoidsandrods
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AT xinshengseanling 2dphasebehaviorsofcolloidalellipsoidsandrods