• 文献标题:   Facile fabrication of hollow mesosphere of crystalline SnO2 nanoparticles and synthesis of SnO2@SWCNTs@Reduced Graphene Oxide nanocomposite as efficient Pt-Free counter electrode for dye-sensitized solar cells
  • 文献类型:   Article
  • 作  者:   KHAN MW, YAO JX, ZHANG K, ZUO XQ, YANG Q, TANG HB, REHMAN KMU, LI G, WU MZ, ZHU KR, ZHANG HJ
  • 作者关键词:   synergistic effect, xrd, sem, tem, counter electrode, dssc
  • 出版物名称:   OPTICAL MATERIALS
  • ISSN:   0925-3467 EI 1873-1252
  • 通讯作者地址:   Anhui Univ
  • 被引频次:   4
  • DOI:   10.1016/j.optmat.2018.04.059
  • 出版年:   2018

▎ 摘  要

In this research, SnO2@SWCNTs@Reduced Graphene Oxide based nanocomposite was synthesized by a one step hydrothermal method and reported new cost effective platinum-free counter-electrodes (CEs) in dye-sensitized solar cells (DSSCs). The CEs were formed by using the nanocomposites with the help of a pipette using a doctor blade technique. The efficiency of this nanocomposite revealed significant elctrocatalytic properties upon falling the triiodide, possessing to synergistic effect of SnO2 nano particles and improved conductivity when SWCNTs dispersed on graphene sheet. Therefore, the power conversion efficiency (PCE) of prepared SnO2@SWCNTs@ RGO nanocomposite CE attained of (6.1%) in DSSCs which is equivalent to the value (6.2%) which attained to the value (6.2%) with pure Pt CE as a reference. SnO2@SWCNTs@RGO nanocomposite CEs give more stable catalytic activities for triiodide reduction than SnO2 and SWCNTs CEs in the cyclic voltammetry (CV) analysis. Furthermore, to the subsistence of graphene oxide, the nanocomposite acquired both higher stability and efficiency in the nanocomposite.