rGO-Cu@TiO2 Nanocomposite: Photosynthesis, Characterization, and Dye Sensitized Solar Cell Performance

Zaid H.  Mahmoud; Ghadir Kamil  Ghadir; Hayder  Musaad Al-Tmimi; Mustafa Jassim  Al-Saray; Saeb Jasim  Al-Shuwaili; Abdulkareem M.  Mohammed; Ahmed  Muzahem Al-Ani; Noor Alhuda  Mohammad Ali Khalil; Mohammed Ahmed  Mustafa

doi:10.18502/fbt.v12i4.19805

Zaid H. Mahmoud Chemistry Department, College of Science, University of Diyala, Iraq
Ghadir Kamil Ghadir College of Pharmacy, Al-Farahidi University, Iraq
Hayder Musaad Al-Tmimi College of Health Medical Techniques, Al-Bayan University, Iraq
Mustafa Jassim Al-Saray Department of Anesthesia Techniques, Al-Manara College For Medical Sciences, Maysan, Iraq
Saeb Jasim Al-Shuwaili Department of Anesthesia Techniques, Al-Hadi University College, Baghdad, 10011, Iraq
Abdulkareem M. Mohammed Collage of Pharmacy, National University of Science and Technology, Dhi Qar, 64001, Iraq
Ahmed Muzahem Al-Ani Department of Medical Engineering, Al-Nisour University College, Baghdad, Iraq
Noor Alhuda Mohammad Ali Khalil College of Health and Medical Technology, Al-Ayen University, Thi-Qar, 64001, Iraq
Mohammed Ahmed Mustafa Department of Medical Laboratory Technology, University of Imam Jaafar AL-Sadiq, Iraq

DOI: https://doi.org/10.18502/fbt.v12i4.19805

Keywords: Dye Sensitized Solar Cells; X Ray Photoelectron; Photolysis; Intensity Modulated Photocurrent Spectroscopy; Selected Area Electron Diffraction.

Abstract

Purpose: In this work, nanocomposite with different weight ratios reduce graphene oxide/copper doping-anatase (rGO/Cu-TiO₂) has been successfully prepared using the photolysis method to evaluate the role of rGO/Cu in photovoltaic properties performance application as a photoanodes.

Materials and Methods: The X-Ray Diffraction (XRD), Raman spectrum, and X-Ray Photoelectron (XPS) results analysis confirmed successfully incorporating rGO/Cu in the TiO₂ crystal structure. Transmission Electron Microscopy (TEM) reveals the formation of spherical agglomeration nanoparticles with a size approximately equal to 18nm.

Results: The current density–voltage curves (J-V) and Intensity-Modulated Photocurrent Spectroscopy (IMPS) showed that the incorporation of rGO sheets enhances the ability of N3 loading of (rGO/Cu-TiO₂) photoanodes with faster charge transfer.

Conclusion: Our results illustrate that optimal Cu and rGO can increase the efficiency of dye-sensitized solar cells (4.56%) by 8.2% higher than TiO₂ DSSCs (3.52%).