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题名: Development of a novel ODEP chip using polymer photoconductive material and FTO electrode
作者: Wang SE(王淑娥) ; Dong ZL(董再励) ; Qu YL(曲艳丽) ; Zhou L(周磊) ; Liu Z(刘柱) ; Zhou, Wenli ; Jiang, Shenglin ; Yu, Yan ; Lee, G.B. ; Li WR(李文荣)
作者部门: 机器人学研究室
会议名称: 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
会议日期: February 20-23, 2011
会议地点: Kaohsiung, Taiwan
会议主办者: Institute of Electrical and Electronics Engineers (IEEE); IEEE Nanotechnology Council (NTC); National Cheng Kung University; National Tsing Hua University; Chinese International NEMS Socity (CINS)
会议录: NEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
会议录出版者: IEEE Computer Society
会议录出版地: Piscataway, NJ
出版日期: 2011
页码: 275-280
收录类别: EI
ISBN号: 9781612847757
关键词: Amorphous films ; Amorphous silicon ; Butyric acid ; Dielectric devices ; Electric fields ; Electrophoresis ; Fatty acids ; Fluorine ; Photoconductivity ; Polystyrenes
摘要: A novel ODEP (optical dielectrophoresis) chip using a polymer photoconductive material and fluorine doped tin oxide (FTO) conductive film is demonstrated to manipulate micron-sized polystyrene beads. Instead of using the traditional hydrogenated amorphous silicon (a-Si:H) as photoconductive layers, a thin film of a mixture of poly (3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methylester (PCBM) photoconductive polymer is used in this novel ODEP chip. When the polymer layer is illuminated by a light beam, many electron-hole pairs are created, which increase the conductivity of the polymer. Consequently, localized non-uniform electric field can be generated when an AC bias is applied across the ODEP chip, and localized DEP forces are then generated. The distribution of electrical field induced by a ring-shaped optical electrode is simulated and the maximum trapping velocity is calculated according to Stokes' law for this ODEP chip. The effect of the polymer thickness to the magnitude of the generated DEP force has also been investigated. The maximum trapping velocity and the induced DEP force exerted on 20 μm polystyrene beads are estimated to be 77 μm/s and 15 pN, respectively. Finally, performance of the polymer-based ODEP chip is compared with an a-Si:H-based ODEP chip by trapping and sorting polystyrene beads with identical parameters. The experimental results indicate that the polymer photoconductive material used in our work is promising for rapid fabrication of ODEP chips for microparticles manipulation.
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内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/8654
Appears in Collections:机器人学研究室_会议论文

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