Capillary Transfer of Self-Assembled Colloidal Crystals

被引：14

作者：

Diaz-Marin, Carlos D. ^{[1
]}

Li, Diane ^{[1
]}

Vazquez-Cosme, Fernando J. ^{[2
]}

Pajovic, Simo ^{[1
]}

Cha, Hyeongyun ^{[1
]}

Song, Youngsup ^{[1
]}

Kilpatrick, Cameron ^{[3
]}

Vaartstra, Geoffrey ^{[1
]}

Wilson, Chad T. ^{[1
]}

Boriskina, Svetlana ^{[1
]}

Wang, Evelyn N. ^{[1
]}

机构：

[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[2] Univ Puerto Rico, Dept Ingn Mecan, Mayaguez, PR 00681 USA

[3] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA

来源：

NANO LETTERS | 2023年 / 23卷 / 05期

基金：

美国国家科学基金会;

关键词：

self-assembly; capillary; transfer; peeling; opal; monolayer; surface; LARGE-AREA; LANGMUIR-BLODGETT; PHOTONIC CRYSTALS; FABRICATION; PARTICLES; HIERARCHY; DESIGN;

D O I：

10.1021/acs.nanolett.2c04896

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Colloidal self-assembly has attracted significant interest in numerous applications including optics, electrochemistry, thermofluidics, and biomolecule templating. To meet the requirements of these applications, numerous fabrication methods have been developed. However, these are limited to narrow ranges of feature sizes, are incompatible with many substrates, and/or have low scalability, significantly limiting the use of colloidal self-assembly. In this work, we study the capillary transfer of colloidal crystals and demonstrate that this approach overcomes these limitations. Enabled by capillary transfer, we fabricate 2D colloidal crystals with nano-to-micro feature sizes spanning 2 orders of magnitude and on typically challenging substrates including those that are hydrophobic, rough, curved, or structured with microchannels. We developed and systemically validated a capillary peeling model, elucidating the underlying transfer physics. Due to its high versatility, good quality, and simplicity, this approach can expand the possibilities of colloidal self assembly and enhance the performance of applications using colloidal crystals.

引用

页码：1888 / 1896

页数：9

共 48 条

[1] Enhanced condensation heat transfer using porous silica inverse opal coatings on copper tubes [J].