Selective manipulation of microparticles using polymer-based optically induced dielectrophoretic devices

Wei Wang, Yen Heng Lin, Ten Chin Wen, Tzung Fang Guo, Gwo Bin Lee

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

This manuscript presents an approach for selective manipulation of microparticles using polymer-based optically induced dielectrophoretic (ODEP) devices. A thin film of a bulk-heterojunction polymer [a mixture of regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM)] is used as a light active layer. The ODEP force is generated by "virtual" electrodes (the optical images) created from a computer-programmable projector to manipulate polystyrene particles. The magnitude of the ODEP force is found to be dependant on the color of illumination light, due to the variation of the absorption coefficient in the P3HT:PCBM film. A noncontact approach is then demonstrated to separate or collect the polymer particles by shrinking one of the two light rings with different colors and diameters. The development of this promising platform may provide a cost-effective approach for ODEP applications.

Original languageEnglish
Article number113302
JournalApplied Physics Letters
Volume96
Issue number11
DOIs
Publication statusPublished - 2010 Mar 26

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Selective manipulation of microparticles using polymer-based optically induced dielectrophoretic devices'. Together they form a unique fingerprint.

  • Cite this