Publication: Effect of organic dye, the concentration and dipping time of the organic dye N719 on the photovoltaic performance of dye-sensitized ZnO solar cell prepared by ammonia-assisted hydrolysis technique
Date
2013
Authors
Rahman M.Y.A.
Umar A.A.
Taslim R.
Salleh M.M.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
This work investigated the influence of the organic dyes N719, N3 and Z907 as photosensitizers on the photovoltaic parameters of ZnO nanorod dye-sensitized solar cells (DSSCs). It also evaluated the effect of the concentration and dipping time of the best dye, N719, on the performance of the cell. TiO 2 nanorods, used as the photovoltaic material of the cell, were prepared via an ammonia-assisted hydrolysis technique. The platinum film as the counterelectrode of the DSSC was prepared using a platinum pellet on an ITO substrate. The redox couple of the electrolyte utilized in the DSSC was iodide/triiodide. The cells sensitized with the N719 and Z907 dyes demonstrated the best performance compared with the cell sensitized with the N3 dye. This occurred as N719 and Z907 demonstrated the highest optical absorption in the visible region. The cell sensitized with a dipping time of 6 h in 0.3 mM N719 performed with the highest short-circuit density, Jsc, of 1.07 mA cm-2 and conversion efficiency, ?, of 0.135% since it possessed the highest optical absorption in the visible region. The corresponding incident photon-to-current conversion efficiency (IPCE) of the cell was 41.0%. � 2012 Elsevier Ltd. All rights reserved.
Description
Keywords
Dye-sensitized solar cell , Photovoltaic parameter , Ruthenium dye , ZnO , Ammonia , Conversion efficiency , Hydrolysis , Light absorption , Nanorods , Photoelectrochemical cells , Photosensitizers , Photovoltaic effects , Platinum , Ruthenium , Titanium dioxide , Zinc oxide , Counter electrodes , Dipping time , Dye sensitized , Dye-Sensitized solar cell , Dye-sensitized solar cells , Incident photon-to-current conversion efficiencies , Organic dye , Photovoltaic materials , Photovoltaic parameters , Photovoltaic performance , Platinum films , Redox couple , Ruthenium dye , TiO , Visible region , ZnO , ZnO nanorod , Solar cells