Cr-Gd co-doped TiO 2 Nanoribbons as Photoanode in Making Dye Sensitized Solar Cell

Abstract

CITATIONS 0 READS 97 3 authors, including: Some of the authors of this publication are also working on these related projects: Synthesis and characterization of complexes derived from Schiff bases and from crown compounds as well as the synthesis and characterization of Inorganic nano-materials. View project Electrochemical impedace spectroscopy (EIS) View project Abdulkareem M.A. Al-sammarraie University of Baghdad 55 PUBLICATIONS 190 CITATIONS SEE PROFILE Abstract: Pure and (Cr 3+-Gd 3+) co-doped TiO 2 nanoribbons (TiNRs) were synthesized by a hydrothermal method at 200°C with stirring at 400 rpm. The structures and morphology of the prepared product were characterized using X-ray diffraction, Fourier transform infrared, Raman spectroscopy, Transmission electron microscopy and Scanning electron microscope. The results showed that the Cr 3+ and Gd 3+ metals ions dopant were incorporated into interstitial position of the TiO 2 lattice nanoribbons with diameter of (30-100) nm and length of few micrometers. The calculated optical band gap for undoped and co-doped of the TiNRs were 3.12 eV and 3.01, respectively. These modified properties of the TiNRs showed an important effect on the conversion efficiency of the assembled dye sensitized solar cells, where the efficiency of the undoped and co-doped TiNRs were 1.71 and 1.99, respectively.