skip to main content

SciTech ConnectSciTech Connect

Title: Production of core–shell type conducting FTO/TiO{sub 2} photoanode for dye sensitized solar cells

Core–shell type photoanode composed of electrically conducting fluorine doped tin dioxide (FTO) matrix and TiO{sub 2} shell layer was prepared and applied in dye sensitized solar cells. Effects of fluorine doping on tin dioxide based cells and precursor material on shell layer were investigated. Fluorine doped tin dioxide nanoparticles were synthesized under hydrothermal conditions and resistivity value down to 17 Ω cm was achieved. Cells constructed from FTO nanoparticles show enhanced performance compared to intrinsic SnO{sub 2}. Deposition of thin blocking TiO{sub 2} layers was conducted using ammonium hexafluorotitanate and titanium tetrachloride aqueous solutions for different dipping durations which yielded significant deviations in the layer morphology and affected cell parameters. Best results were obtained with titanium tetrachloride treated cells giving 11.51 mA/cm{sup 2} photocurrent density and they were comparable with that of pure TiO{sub 2} based cells prepared under identical conditions. - Graphical abstract: Core shell type FTO matrix was formed as TiO{sub 2} is the shell material to create a blocking layer between FTO core and the electrolyte for suppressed recombination and efficiency enhancement. Display Omitted - Highlights: • Core–shell type photoanode using conducting FTO matrix and TiO{sub 2} shell was prepared. • FTO nanoparticles having resistivity value downmore » to 17 Ω cm was achieved. • Best cell parameters were obtained with TiCl{sub 4} treated cells. • FTO nanoparticle based cells show enhanced performance compared to intrinsic SnO{sub 2}. • Photocurrent in TiCl{sub 4} treated cells is found as comparable to pure TiO{sub 2} cell.« less
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [3] ;  [4]
  1. Micro and Nanotechnology Graduate Program, Middle East Technical University, Dumlupinar Bulvari, 06800 Ankara (Turkey)
  2. (GUNAM), Middle East Technical University, Dumlupinar Bulvari, 06800 Ankara (Turkey)
  3. Center for Solar Energy Research and Applications (GUNAM), Middle East Technical University, Dumlupinar Bulvari, 06800 Ankara (Turkey)
  4. (Turkey)
Publication Date:
OSTI Identifier:
22274189
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 210; Journal Issue: 1; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; DEPLETION LAYER; DEPOSITION; EFFICIENCY; ELECTROLYTES; FLUORINE; NANOSTRUCTURES; PARTICLES; RECOMBINATION; SOLAR CELLS; TIN OXIDES; TITANIUM CHLORIDES; TITANIUM OXIDES