화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.21, No.6, 693-698, June, 2013
DOI10.1007/s13233-013-1060-3  Export Citation
Preparation of PEDOT/PSSA conductive nanoparticles for dielectrophoretic display
Hun Seok Kang1, Soo-Yeon Park1, 2, Kunji Kim1, Jung-Woon Kim1, Heon Jeong1, Seung Hee Lee1, 2, and Myong-Hoon Lee1, 3, †
  • 1Polymer BIN Fusion Research Center, Department of Polymer/Nano Science and Technology, Chonbuk National University, Jeonbuk, 561-756, Korea
  • 2Department of BIN Fusion Technology, Chonbuk National University, Jeonbuk, 561-756, Korea
  • 3Graduate School of Flexible and Printable Electronics, Chonbuk National University, Jeonbuk, 561-756, Korea
E-mail:
Poly(3,4-ethylenedioxythiophene) (PEDOT):poly(styrene sulfonic acid) (PSSA) nanoparticles for dielectrophoretic display were prepared by in situ polymerization of 3,4-ethylenedioxythiophene in the PSSA nanoparticle, which was obtained from the sulfonation of polystyrene nanoparticles prepared by a conventional emulsion technique. The properties of the resulting nanoparticle were characterized by Fourier transform infrared spectrascopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and the dynamic light scattering (DLS) technique. The particle was uniform in spherical shape with an average diameter of ca. 300∼320 nm, and showed high thermal stability up to 340 °C. The electrical conductivity of the PEDOT:PSSA nanoparticle was measured to be as high as 0.11 S/cm. The dielectrophoretic display cell prepared from the colloidal PEDOT:PSSA nanoparticle dispersed in nematic liquid crystal showed significant optical change in response to electric field variation.
Keywords:PEDOT:PSSA nanoparticle;dielectrophoretic display;liquid crystal;conductive particle
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