• 文献标题:   Modification and photovoltaic properties of reduced graphene oxide/acetylene black composite electrode
  • 文献类型:   Article
  • 作  者:   SHEN Y, LI T, XU K, ZHANG ZK, CAO M, GU F, WANG LJ
  • 作者关键词:   rgo, acet, dssc, solventsubstitution, electrode, nanocomposite electrode, solar energy application
  • 出版物名称:   JOURNAL OF NANOPARTICLE RESEARCH
  • ISSN:   1388-0764 EI 1572-896X
  • 通讯作者地址:   Shanghai Univ
  • 被引频次:   0
  • DOI:   10.1007/s11051-018-4299-y
  • 出版年:   2018

▎ 摘  要

A simple and high efficient reduced graphene oxide/acetylene black (rGO/ACET) nano-composite electrode was prepared as the substitute of high-cost Pt counter electrode in dye-sensitized solar cells (DSSCs). Surface-modified method called solvent-substituting (SS) was firstly used to avoid agglomeration of rGO sheets. The Brunner-Emmet-Teller (BET)-specific surface area of rGO was increased from 195.823 to 355.210 m(2)/g after modifying with ethanol. Then ACET particles were introduced between rGO layers to improve the electronic transportation properties. The chemical compositions, microstructures, and pore size distributions of rGO/ACET composites were investigated. Electrochemical impedance spectroscopy (EIS) indicated that rGO/ACET counter electrode had a lower charge transfer resistance (R-ct) and its S-shaped current-voltage curves disappeared obviously. The highest power conversion efficiency up to 6.62% was achieved for the DSSCs with rGO/ACET nano-composite counter electrode.