Paper
Growth and Performance of TiO2 Nanotubes on Anatase Blocking Layer in Dye-Sensitized Solar Cells
- Authors:
- Divya Jyoti; Devendra Mohan
- Abstract
- The growth of nanostructured TiO2 on indium tin oxide (ITO) coated glass substrate has been reported. A thin film of TiO2 nanoparticles has been first layered down by dip coating and annealed followed by growth of anatase TiO2 nanotubes with a remnant blocking layer by solvothermal process. The novelty of the task lies in the formation of blocking layer beneath the nanotubes to be employed as photoanode in front side illuminated dye-sensitized solar cell. The morphology and microstructure of the nanotubes have been characterized by x-ray diffraction and electron microscopy, Raman spectroscopy, UV-visible spectra. Dye-sensitized solar cell has been assembled using this nanotube film as photoelectrode. The performance of the cell has been analyzed on the basis of incident photon to current conversion efficiency (IPCE) spectra and current-density, voltage (JV) characteristics. The observed efficiency value is 7.28%.
- Keywords
- Blocking Layer; Pinning; Fermi Level; Extinction Length
- StartPage
- 57
- EndPage
- 63
- Doi