Abstract
Layer-ordered and ultrathin films of conducting polymer poly(3,4-ethylene dioxythiophene) (PEDOT) was prepared through a chemical vapor phase polymerization method. The chemical polymerization of 3, 4-ethylenedioxythiophene monomer was initiated in as-prepared oxidant LB films,and PEDOT nanofilms with layer-ordered structure was constructed. UV-Vis absorption spectrum and Fourier transform infrared spectroscopy was used to confirm an interface polymerization of PEDOT in as-prepared LB films. The results of X-ray diffraction and secondary ion mass spectrometry revealed that conductive PEDOT ultrathin layers were well located at different planes of LB films. The film deposition surface pressure and chemical polymerization time of PEDOT monomer in as-prepared LB films showed distinct influence on surface morphology and conductive performance of the polymerized PEDOT LB films. This layer-ordered conducting polymer ultrathin films was deposited on ITO surface as hole injection layer for organic light-emitting diodes, and the luminescence performance of devices was improved as well.
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Acknowledgments
The work was supported by the National Science Foundation of China (NSFC) (No. 61101029), the Fundamental Research Funds for the Central Universities (No. ZYGX2010J057), the national defense pre-research foundation (No. 9140A23070111DZ02042).
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Yang, Y., Li, S., Yang, W. et al. Chemical vapor phase polymerization deposition of layer-ordered conducting polymer nanostructure for hole injection layer. J Mater Sci: Mater Electron 24, 1382–1388 (2013). https://doi.org/10.1007/s10854-012-0940-1
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DOI: https://doi.org/10.1007/s10854-012-0940-1