Optical Spectrum and Electric Field Waveform Dependent Optically-Induced Dielectrophoretic (ODEP)Micro-Manipulation

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	Optical Spectrum and Electric Field Waveform Dependent Optically-Induced Dielectrophoretic (ODEP)Micro-Manipulation
	Liang WF(梁文峰); Wang SE(王淑娥); Dong ZL(董再励); Li GB(李国宾); Li WJ(李文荣)
刊名	Micromachines
	2012
卷号	3 期号:2 页码:492-508
关键词	optically-induced dielectrophoresis ODEP force dielectrophoresis DEP force micro-manipulation micro-assembly
ISSN号	2072-666X
通讯作者	李文荣
产权排序	1
中文摘要	In the last seven years, optoelectronic tweezers using optically-induced dielectrophoretic (ODEP) force have been explored experimentally with much success in manipulating micro/nano objects. However, not much has been done in terms of in-depth understanding of the ODEP-based manipulation process or optimizing the input physical parameters to maximize ODEP force. We present our work on analyzing two significant influencing factors in generating ODEP force on a-Si:H based ODEP chips: (1) the waveforms of the AC electric potential across the fluidic medium in an ODEP chip based microfluidic platform; and (2) optical spectrum of the light image projected onto the ODEP chip. Theoretical and simulation results indicate that when square waves are used as the AC electric potential instead of sine waves, ODEP force can double. Moreover, numerical results show that ODEP force increases with increasing optical frequency of the projected light on an ODEP chip following the Fermi-Dirac function, validating that the optically-induced dielectrophoresis force depends strongly on the electron-hole carrier generation phenomena in optoelectronic materials. Qualitative experimental results that validate the numerical results are also presented in this paper.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Nanoscience & Nanotechnology ; Instruments & Instrumentation
研究领域[WOS]	Science & Technology - Other Topics ; Instruments & Instrumentation
关键词[WOS]	AMORPHOUS-SILICON ; CELL ; MICROPARTICLES ; NANOPARTICLES ; IMAGES
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000325015500021
公开日期	2012-12-28
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/10333]
专题	沈阳自动化研究所_机器人学研究室
推荐引用方式 GB/T 7714	Liang WF,Wang SE,Dong ZL,et al. Optical Spectrum and Electric Field Waveform Dependent Optically-Induced Dielectrophoretic (ODEP)Micro-Manipulation[J]. Micromachines,2012,3(2):492-508.
APA	Liang WF,Wang SE,Dong ZL,Li GB,&Li WJ.(2012).Optical Spectrum and Electric Field Waveform Dependent Optically-Induced Dielectrophoretic (ODEP)Micro-Manipulation.Micromachines,3(2),492-508.
MLA	Liang WF,et al."Optical Spectrum and Electric Field Waveform Dependent Optically-Induced Dielectrophoretic (ODEP)Micro-Manipulation".Micromachines 3.2(2012):492-508.