Self-Assembled ZnO Nanosheet-Based Spherical Structure as Photoanode in Dye-Sensitized Solar Cells


Ameri M. , Raoufi M., Zamani-Meymian M. -. , Samavat F., Fathollahi M. -. , Mohajerani E.

JOURNAL OF ELECTRONIC MATERIALS, vol.47, no.3, pp.1993-1999, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1007/s11664-017-6000-0
  • Title of Journal : JOURNAL OF ELECTRONIC MATERIALS
  • Page Numbers: pp.1993-1999
  • Keywords: Dye-sensitized solar cells, hierarchical, nanosheet, current density-voltage, EFFICIENCY ENHANCEMENT, HIGHLY EFFICIENT, GROWTH, NANOPARTICLE, PERFORMANCE, LIFETIME

Abstract

High surface area and enhanced light scattering of ZnO nanosheet aggregates have made them a promising active layer candidate material for fabrication of nanostructure dye-sensitized solar cells. Here, we propose a facile preparation method of such ZnO nanosheet structures, and in order to verify their applicability as photoanode material for dye-sensitized solar cells, we employ morphological, optical, structural and electrical measurements. The results reveal the high surface area available for dye molecules for enhancing adsorption, high light scattering and competitive power conversion efficiencies compared to the works in literature. Finally, the device is optimized with respect to the photoanode thickness. The favorable features shown here can extend the application of the structure to other types of sensitization-based perovskite and quantum dot solar cells.