This paper presents a new method using a polymermaterial to generate optically-induced dielectrophoretic (ODEP) forces for particle manipulation. Instead of using the common material such as amorphous silicon, a polymer (P3HT/PCBM) which has excellent light absorption, was used in this study. Without using delicate and high-temperature thin-film process, the entire fabrication process was performed at room temperature. As a light beam was illuminated onto the polymer surface, electron-hole pairs was generated such that a non-uniform electric field was induced when an AC voltage was applied on the ODEP chip, thus generating an ODEP force. It can be used to manipulate particles for several functions such as concentration, transportation and separation of particles. The concentration of the polymer was found to play an important role on the magnitude of the ODEP force. Experimental data showed that polystyrene beads can be moved around using the developed chip. The maximum ODEP force was experimentally found to be around 35.2 pN. The new material may provide a cost-effective approach for mass-production of the ODEP chips.
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|Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
|Published - 2009 6月 1
|22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2009 - Sorrento, Italy
持續時間: 2009 1月 25 → 2009 1月 29
All Science Journal Classification (ASJC) codes