Experimental Observation Of Electrical Instability Of Droplets On Dielectric Layer
文献类型：期刊论文
| 作者 | Feng JT(冯江涛) ; Zhao YP(赵亚溥)
|
| 刊名 | Journal of Physics D-Applied Physics
 |
| 出版日期 | 2008 |
| 通讯作者邮箱 | yzhao@imech.ac.cn |
| 关键词 | Electrowetting-Based Actuation Polydimethylsiloxane Pdms Microfluidic Devices Liquid Droplets Films Wettability Discharges Recovery Exposure |
| ISSN号 | 0022-3727 |
| 通讯作者 | Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
| 中文摘要 | Polydimethylsiloxane ( PDMS) has become the most widely used silicon-based organic polymer in bio-MEMS/NEMS devices. However, the inherent hydrophobic nature of PDMS hinders its wide applications in bio-MEMS/NEMS for efficient transport of liquids. Electrowetting is a useful tool to reduce the apparent contact angle of partially wetting conductive liquids and has been utilized widely in bio-MEMS/NEMS. Our experimental results show that the thin PDMS membranes exhibit good properties in electrowetting-on-dielectric. The electrical instability phenomenon of droplets was observed in our experiment. The sessile droplet lying on the PDMS membrane will lose its stability with the touch of the wire electrode to make the apparent contact angle change suddenly larger than 35 degrees. Contact mode can protect the dielectric layer from electrical breakdown effectively. Electrical breakdown process of dielectric layer was recorded by a high speed camera. It is found experimentally that a PDMS membrane of 4.8 mu m thick will not be destroyed due to the electric breakdown even at 800 V in the contact mode. |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | ELECTROWETTING-BASED ACTUATION ; POLYDIMETHYLSILOXANE PDMS ; MICROFLUIDIC DEVICES ; LIQUID DROPLETS ; FILMS ; WETTABILITY ; DISCHARGES ; EXPOSURE ; RECOVERY ; PLASMA |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000254153800004 |
| 公开日期 | 2009-08-03 ; 2009-09-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/26104]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Feng JT,Zhao YP. Experimental Observation Of Electrical Instability Of Droplets On Dielectric Layer[J]. Journal of Physics D-Applied Physics,2008. |
| APA | 冯江涛,&赵亚溥.(2008).Experimental Observation Of Electrical Instability Of Droplets On Dielectric Layer.Journal of Physics D-Applied Physics. |
| MLA | 冯江涛,et al."Experimental Observation Of Electrical Instability Of Droplets On Dielectric Layer".Journal of Physics D-Applied Physics (2008). |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。