• 文献标题:   Electrochemically exfoliated graphene/PEDOT composite films as efficient Pt-free counter electrode for dye-sensitized solar cells
  • 文献类型:   Article
  • 作  者:   BELEKOUKIA M, RAMASAMY MS, YANG S, FENG XL, PATERAKIS G, DRACOPOULOS V, GALIOTIS C, LIANOS P
  • 作者关键词:   electrochemically exfoliated graphene, pedot, dyesensitized solar cell, counter electrode
  • 出版物名称:   ELECTROCHIMICA ACTA
  • ISSN:   0013-4686 EI 1873-3859
  • 通讯作者地址:   Univ Patras
  • 被引频次:   27
  • DOI:   10.1016/j.electacta.2016.02.073
  • 出版年:   2016

▎ 摘  要

High quality graphene was produced by electrochemical exfoliation of graphite. The obtained material was dispersible in several organic solvents and when applied on a Si/SiO2 substrate it formed thin sheets mostly of 1-3 layers with lateral dimensions ranging between 1 and 10 mu m. The number of defects in these sheets was quite low as detected by Raman spectroscopy. Graphene was transferred on FTO electrodes by its dispersion in isopropanol and produced thin transparent films, which were combined with electrochemically deposited PEDOT and were used as counter electrodes in dye-sensitized solar cells. The synergy between the two materials was remarkable and the obtained hybrid electrocatalyst outperformed standard Pt nanoparticle electrocatalyst. (C) 2016 Elsevier Ltd. All rights reserved.