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Exploring pulse-voltage-triggered optically induced electrohydrodynamic instability for femtolitre droplet generation
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)
Department机器人学研究室
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
2014
Volume104Issue:26
Indexed BySCI ; EI
EI Accession number20143318063346
WOS IDWOS:000339114100079
Contribution Rank1
Funding OrganizationNational Natural Science Foundation of China [61302003]; CAS-Croucher Joint Lab Scheme [9500011]; Hong Kong Research Grants Council [CityU11691]; CAS FEA International Partnership Program for Creative Research Teams
AbstractWe 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.
Language英语
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Applied
WOS KeywordDIELECTRIC LIQUIDS ; ELECTRIC-FIELD ; STABILITY ; BEHAVIOR ; JETS
WOS Research AreaPhysics
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/15260
Collection机器人学研究室
Corresponding AuthorLiu LQ(刘连庆); Li WJ(李文荣)
Affiliation1.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
GB/T 7714
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).
APA Wang FF.,Fei, Fei.,Liu LQ.,Yu HB.,Yu P.,...&Li WJ.(2014).Exploring pulse-voltage-triggered optically induced electrohydrodynamic instability for femtolitre droplet generation.APPLIED PHYSICS LETTERS,104(26).
MLA Wang FF,et al."Exploring pulse-voltage-triggered optically induced electrohydrodynamic instability for femtolitre droplet generation".APPLIED PHYSICS LETTERS 104.26(2014).
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