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题名:
Exploring pulse-voltage-triggered optically induced electrohydrodynamic instability for femtolitre droplet generation
作者: Wang FF(王飞飞); Fei, Fei; Liu LQ(刘连庆); Yu HB(于海波); Yu P(于鹏); Wang YC(王越超); Lee, Gwo-Bin; Li WJ(李文荣)
作者部门: 机器人学研究室
通讯作者: 刘连庆 ; 李文荣
刊名: APPLIED PHYSICS LETTERS
ISSN号: 0003-6951
出版日期: 2014
卷号: 104, 期号:26
收录类别: SCI ; EI
EI收录号: 20143318063346
WOS记录号: WOS:000339114100079
产权排序: 1
摘要: We present a multipoint "virtual dispenser" to draw femtolitre droplets from a dielectric fluidic thin film using pulse-voltage-triggered optically induced electrohydrodynamic instability (PVT-OEHI). The "virtual dispenser" generates instability nucleation sites by controlling the optically induced lateral electrical stress and thermocapillary flow inside an optoelectronics chip. A time scale analysis shows that the electrohydrodynamic (EHD) instability phenomenon is present; however, its external manifestation is suppressed by OEHI. We observed two droplet dispensing mechanisms which correspond to different EHD states: Taylor cone formation and optically induced EHD jet. The EHD states transition could be realized by adjusting the pulse voltage parameters to alter the morphology of dispensed micron-scale polymer droplets, which could then be formed into organized arrays of microlenses with controllable diameter and curvature based on surface tension effect.
语种: 英语
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Applied
关键词[WOS]: DIELECTRIC LIQUIDS ; ELECTRIC-FIELD ; STABILITY ; BEHAVIOR ; JETS
研究领域[WOS]: Physics
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/15260
Appears in Collections:机器人学研究室_期刊论文

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作者单位: 1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong
4.Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan

Recommended Citation:
Wang FF,Fei, Fei,Liu LQ,et al. Exploring pulse-voltage-triggered optically induced electrohydrodynamic instability for femtolitre droplet generation[J]. APPLIED PHYSICS LETTERS,2014,104(26).
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