Bifunction-Integrated Dielectric Nanolayers of Fluoropolymers with Electrowetting Effects.

Hao Wu, Hao Li, Ahmad Umar, Yao Wang, Guofu Zhou

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In one paragraph

Article in Materials (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Hao WuGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China. wuhao@scnu.edu.cn.

Hao LiGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China. haoli@scnu.edu.cn.ORCID 0000-0003-1744-1526

Ahmad UmarDepartment of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices, Najran University, Najran 11001, Kingdom of Saudi Arabia. ahmadumar786@gmail.com.

Yao WangGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China. wangyao@m.scnu.edu.cn.ORCID 0000-0002-0713-5018

Guofu ZhouGuangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China. guofu.zhou@m.scnu.edu.cn.

Funding

Guangdong Innovative Research Team Program 2013C102Guangdong Provincial Key Laboratory of Optical Information Materials and Technology 2017B030301007Guangzhou Key Laboratory of Electronic Paper Displays Materials and Devices 201705030007National Key Research and Development Program of China 2016YFB0401501National Natural Science Foundation of China 51561135014National Natural Science Foundation of China U1501244National Natural Science Foundation of China U1601651Program for Chang Jiang Scholars and Innovative Research Teams in Universities IRT_17R40)Science and technology project of Shenzhen Municipal Science and Technology Innovation Committee GQYCZZ20150721150406

6 · The paper itself

Abstract

Fluoropolymers play an essential role in electrowetting (EW) systems. However, no fluoropolymer possesses the desirable properties of both hydrophobicity and dielectric strength. In this study, for the first time, we report the integration of two representative fluoropolymers-namely, Teflon AF (AF 1600X) and Cytop (Cytop 809A)-into one bifunctionalized dielectric nanolayer. Within this nanolayer, both the superior hydrophobicity of Teflon AF and the excellent dielectric strength of Cytop were able to be retained. Each composed of a 0.5 μm Cytop bottom layer and a 0.06 μm Teflon AF top layer, the fabricated composite nanolayers showed a high withstand voltage of ~70 V (a dielectric strength of 125 V/μm) and a high water contact angle of ~120°. The electrowetting and dielectric properties of various film thicknesses were also systemically investigated. Through detailed study, it was observed that the thicker Teflon AF top layers produced no obvious enhancement of the Cytop/Teflon AF stack.

Indexed as

contact angledielectric layerdielectric strengthelectrowettingfluoropolymers

Identifiers

PMID30563169

DOI10.3390/ma11122474

PMCPMC6316971

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.