2006
DOI: 10.1021/jp067395e
|View full text |Cite
|
Sign up to set email alerts
|

Electrowetting at the Nanoscale

Abstract: Using molecular simulations of nanosized aqueous droplets on a model graphite surface, we demonstrate remarkable sensitivity of water contact angles to the applied electric field polarity and direction relative to the liquid/solid interface. The effect is explained by analyzing the influence of the field on interfacial hydrogen bonding in the nanodrop, which in turn affects the interfacial tensions. The observed anisotropy in droplet wetting is a new nanoscale phenomenon that has so far been elusive as, in cur… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

19
201
0
1

Year Published

2008
2008
2024
2024

Publication Types

Select...
6
1
1

Relationship

2
6

Authors

Journals

citations
Cited by 150 publications
(221 citation statements)
references
References 48 publications
(94 reference statements)
19
201
0
1
Order By: Relevance
“…In a preceding study 54 , we presented a comparison between field effects on average numbers of hydrogen bonds determined by both the geometric 35 and energetic 55 criteria. Identical effects were found using either method, hence only the geometric definition is applied here.…”
Section: Interactions Among Water Molecules Aligned By Applied Electrmentioning
confidence: 99%
“…In a preceding study 54 , we presented a comparison between field effects on average numbers of hydrogen bonds determined by both the geometric 35 and energetic 55 criteria. Identical effects were found using either method, hence only the geometric definition is applied here.…”
Section: Interactions Among Water Molecules Aligned By Applied Electrmentioning
confidence: 99%
“…In our recent work we demonstrated the importance of molecular scale events in understanding and making quantitative predictions of electrowetting phenomena in a nanoscale system. 8,9 In particular, we highlighted the coupling between interfacial hydrogen bonds and molecular alignment in electric field. This coupling modulates the dependence on field direction and polarity in contrast with conventional picture in a macroscopic system discussed above; system size plays a crucial role.…”
Section: Introductionmentioning
confidence: 98%
“…Molecular level studies of these phenomena [6][7][8][9] , however, can bring in an entirely new perspective. In our recent work we demonstrated the importance of molecular scale events in understanding and making quantitative predictions of electrowetting phenomena in a nanoscale system.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…16 Thus, the governing equation is the same as that at the macroscale if we define an electrowetting number at the microscale η m = C m V 2 /2γ LV , where C m is the effective capacitance per unit area. When a droplet electrowets on a rough surface, the situation becomes complicated.…”
Section: Introductionmentioning
confidence: 99%