Evaporation of Water Droplets on “Lock-and-Key” Structures with Nanoscale Features

Xiaolong Zhu, Chi Zhang, Xiaohan Liu, Ole Hansen, Sanshui Xiao, N. Asger Mortensen, Jian Zi

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Highly ordered poly(dimethylsiloxane) microbowl arrays (MBAs) and microcap arrays (MCAs) with “lock-and-key” properties are successfully fabricated by self-assembly and electrochemical deposition. The wetting properties and evaporation dynamics of water droplets for both cases have been investigated. For the MBAs case, the wetting radius of the droplets remains unchanged until the portion of the droplet completely dries out at the end of the evaporation process. The pinning state extends for more than 99.5% of the total evaporation time, and the pinning–shrinking transition is essentially prevented whereas in the case of the MCAs the contact radius exhibits distinct stages during evaporation and the contact line retreats significantly in the middle of the evaporation process. We explain the phenomenon by a qualitative energy balance argument based on the different shrinkage types of the nanoscale-folded contact line.
OriginalsprogEngelsk
TidsskriftLangmuir
Vol/bind28
Udgave nummer25
Sider (fra-til)9201–9205
ISSN0743-7463
DOI
StatusUdgivet - 2012
Udgivet eksterntJa

Fingeraftryk

Evaporation
evaporation
Water
water
wetting
Wetting
radii
Polydimethylsiloxane
Energy balance
shrinkage
Self assembly
self assembly
energy

Citer dette

Zhu, Xiaolong ; Zhang, Chi ; Liu, Xiaohan ; Hansen, Ole ; Xiao, Sanshui ; Mortensen, N. Asger ; Zi, Jian. / Evaporation of Water Droplets on “Lock-and-Key” Structures with Nanoscale Features. I: Langmuir. 2012 ; Bind 28, Nr. 25. s. 9201–9205.
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title = "Evaporation of Water Droplets on “Lock-and-Key” Structures with Nanoscale Features",
abstract = "Highly ordered poly(dimethylsiloxane) microbowl arrays (MBAs) and microcap arrays (MCAs) with “lock-and-key” properties are successfully fabricated by self-assembly and electrochemical deposition. The wetting properties and evaporation dynamics of water droplets for both cases have been investigated. For the MBAs case, the wetting radius of the droplets remains unchanged until the portion of the droplet completely dries out at the end of the evaporation process. The pinning state extends for more than 99.5{\%} of the total evaporation time, and the pinning–shrinking transition is essentially prevented whereas in the case of the MCAs the contact radius exhibits distinct stages during evaporation and the contact line retreats significantly in the middle of the evaporation process. We explain the phenomenon by a qualitative energy balance argument based on the different shrinkage types of the nanoscale-folded contact line.",
author = "Xiaolong Zhu and Chi Zhang and Xiaohan Liu and Ole Hansen and Sanshui Xiao and Mortensen, {N. Asger} and Jian Zi",
year = "2012",
doi = "10.1021/la301867q",
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Zhu, X, Zhang, C, Liu, X, Hansen, O, Xiao, S, Mortensen, NA & Zi, J 2012, 'Evaporation of Water Droplets on “Lock-and-Key” Structures with Nanoscale Features', Langmuir, bind 28, nr. 25, s. 9201–9205. https://doi.org/10.1021/la301867q

Evaporation of Water Droplets on “Lock-and-Key” Structures with Nanoscale Features. / Zhu, Xiaolong; Zhang, Chi; Liu, Xiaohan; Hansen, Ole; Xiao, Sanshui; Mortensen, N. Asger; Zi, Jian.

I: Langmuir, Bind 28, Nr. 25, 2012, s. 9201–9205.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Evaporation of Water Droplets on “Lock-and-Key” Structures with Nanoscale Features

AU - Zhu, Xiaolong

AU - Zhang, Chi

AU - Liu, Xiaohan

AU - Hansen, Ole

AU - Xiao, Sanshui

AU - Mortensen, N. Asger

AU - Zi, Jian

PY - 2012

Y1 - 2012

N2 - Highly ordered poly(dimethylsiloxane) microbowl arrays (MBAs) and microcap arrays (MCAs) with “lock-and-key” properties are successfully fabricated by self-assembly and electrochemical deposition. The wetting properties and evaporation dynamics of water droplets for both cases have been investigated. For the MBAs case, the wetting radius of the droplets remains unchanged until the portion of the droplet completely dries out at the end of the evaporation process. The pinning state extends for more than 99.5% of the total evaporation time, and the pinning–shrinking transition is essentially prevented whereas in the case of the MCAs the contact radius exhibits distinct stages during evaporation and the contact line retreats significantly in the middle of the evaporation process. We explain the phenomenon by a qualitative energy balance argument based on the different shrinkage types of the nanoscale-folded contact line.

AB - Highly ordered poly(dimethylsiloxane) microbowl arrays (MBAs) and microcap arrays (MCAs) with “lock-and-key” properties are successfully fabricated by self-assembly and electrochemical deposition. The wetting properties and evaporation dynamics of water droplets for both cases have been investigated. For the MBAs case, the wetting radius of the droplets remains unchanged until the portion of the droplet completely dries out at the end of the evaporation process. The pinning state extends for more than 99.5% of the total evaporation time, and the pinning–shrinking transition is essentially prevented whereas in the case of the MCAs the contact radius exhibits distinct stages during evaporation and the contact line retreats significantly in the middle of the evaporation process. We explain the phenomenon by a qualitative energy balance argument based on the different shrinkage types of the nanoscale-folded contact line.

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DO - 10.1021/la301867q

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JO - Langmuir

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