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Development of a novel ODEP chip using polymer photoconductive material and FTO electrode
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 WJ(李文荣)
Department机器人学研究室
Conference Name6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2011
Conference DateFebruary 20-23, 2011
Conference PlaceKaohsiung, Taiwan
Author of SourceInstitute of Electrical and Electronics Engineers (IEEE); IEEE Nanotechnology Council (NTC); National Cheng Kung University; National Tsing Hua University; Chinese International NEMS Socity (CINS)
Source PublicationNEMS 2011 - 6th IEEE International Conference on Nano/Micro Engineered and Molecular Systems
PublisherIEEE Computer Society
Publication PlacePiscataway, NJ
2011
Pages275-280
Indexed ByEI
EI Accession number20114014394738
Contribution Rank1
ISBN978-1-61284-775-7
KeywordAmorphous Films Amorphous Silicon Butyric Acid Dielectric Devices Electric Fields Electrophoresis Fatty Acids Fluorine Photoconductivity Polystyrenes
Abstract

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.

Language英语
Document Type会议论文
Identifierhttp://ir.sia.cn/handle/173321/8654
Collection机器人学研究室
Affiliation1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.Graduate Univ. of Chinese Academy of Sciences, Beijing, China
3.Dept. of Electronic Sci. and Tech., Huazhong Univ. of Sci. and Tech., China
4.Wuhan National Laboratory for Optoelectronics, Wuhan, China
5.Cent. for Micro/Nano Tech. Research, National Cheng Kung Univ., Taiwan
6.Cent. for Micro and Nano Systems, Chinese Univ. of Hong Kong, Hong Kong, Hong Kong
Recommended Citation
GB/T 7714
Wang SE,Dong ZL,Qu YL,et al. Development of a novel ODEP chip using polymer photoconductive material and FTO electrode[C]//Institute of Electrical and Electronics Engineers (IEEE); IEEE Nanotechnology Council (NTC); National Cheng Kung University; National Tsing Hua University; Chinese International NEMS Socity (CINS). Piscataway, NJ:IEEE Computer Society,2011:275-280.
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