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Articles by S.Y. Kim
Total Records ( 2 ) for S.Y. Kim
  M.S. Cho , S.Y. Kim , J.D. Nam and Y. Lee
  Poly(3,4-ethylenedioxythiophene)/copper (PEDOT/Cu) composites were prepared by an in situ redox reaction of 3,4-ethylenedioxythiophene (EDOT) and copper(II) chloride. During the reaction, EDOT was oxidatively polymerized by Cu(II) chloride, while the Cu(II) ions were reduced to produce Cu metal particles. PEDOT/Cu composite films were also successfully prepared on CuCl2-coated poly(ethylene terephthalate) (PET) films by the vapor phase polymerization of EDOT. PEDOT/Cu films were characterized using UV–vis spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) to confirm the formation of PEDOT, and the presence of metallic Cu particles.
  S.Y. Kim , D.G. Moon , C.J. Lee and J.I. Han
  We have developed a semitransparent cathode for the top emission organic light-emitting devices using a Sr/Ag double layer prepared by the thermal evaporation technique. The Sr (8–10 nm)/Ag (10 nm) cathode shows the transmittance of 55–76% in the visible spectral region and the sheet resistance of about 12 Ω/□. The underlying Sr layer affects the growing characteristics of Ag layer, resulting in high optical transparency. The bis[2-(2′-benzothienyl)-pyridinato-N,C3′]iridium(acetylacetonate) doped top emission electro-phosphorescent device with a Sr/Ag semitransparent cathode has been fabricated and studied.
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