The Effect of the Terminal Functional Groups on Fluoropolymer on Electrowetting Device Performance

Electrowetting on dielectric (EWOD) devices were fabricated using two hydrophobic organic fluoropolymers, comprising CYTOP (a product name) having different chemical structures only at the terminal functional groups. These devices were subsequently characterized by applying a range of direct current...

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Bibliographic Details
Published inTechnologies (Basel) Vol. 7; no. 3; p. 52
Main Authors Oishi, Eri, Araki, Noritoshi, Goto, Teruya, Awano, Hiroshi, Takahashi, Tatsuhiro
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2019
Subjects
Contact angle
Curing
dielectric polymer
Direct current
electrical wettability
electrowetting
fluoropolymer
Fluoropolymers
Functional groups
Molecular weight
Polymers
Product names
Quantum dots
Substrates
terminal functional groups
Thin films
Japan
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Summary:Electrowetting on dielectric (EWOD) devices were fabricated using two hydrophobic organic fluoropolymers, comprising CYTOP (a product name) having different chemical structures only at the terminal functional groups. These devices were subsequently characterized by applying a range of direct current (DC) voltages. The data demonstrated that the EWOD performance was dramatically improved upon incorporating a CYTOP polymer having highly polar terminal functional groups, as compared to a polymer having terminal groups with lower polarity. The new finding about the positive effect of highly polar terminal functional groups on the enhancement of EWOD was exhibited through various careful experiments, changing only the quantitative amount of polar terminal functional groups while keeping other factors constant (thickness, substrate, etc.).
ISSN:2227-7080
2227-7080
DOI:10.3390/technologies7030052