Synthesis and photovoltaic characterization of thin films based on ferroelectric and multiferroic perovskite for solar cells application

• Grant number: 19/03110-8
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): July 01, 2019
• Effective date (End): September 30, 2021
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: José Antonio Eiras
• Grantee: Mahmoud Saleh Mohammed Alkathy
• Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 17/13769-1 - Multiferroic and ferroelectric materials for energy converters: synthesis, properties, phenomenology and applications, AP.TEM

Abstract

The worldwide energy crisis has motivated the search for new sources of clean and renewable energy, among which the use of the photovoltaic effect for the capture of solar energy has been highlighted. Among various types of materials that can be used for solar cell applications ferroelectric and multiferroic perovskite structures have received great attention in recent years. In this project, thin films of ferroelectric and multiferroic perovskite will be deposited by "RF Sputtering" aiming the optimization of their photovoltaic properties. Among the systems we propose to investigate in this project are complex perovskites of Pb (Fe, B) O3 (B = Nb, W, Ta, Ti) and solid solutions of Pb (Fe, B) O3 - Pb (Zr, Ti) O3, in addition to lead-free perovskites based on K (Na, Nb) O3. The various parameters that influence the photovoltaic effect in these systems, such as band gap, spontaneous/remnant polarization, electrical conductivity, electrode/interface properties, among others, will be investigated by optical, electrical, dielectric and ferroelectric techniques, in macroscopic and nanoscopic scale , aiming at understanding and optimizing the photovoltaic response. In the compositions, in which the absorption band lies the central region of the solar spectrum, the photovoltaic efficiency will be determined in prototypes of solar cells. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ZABOTTO, F. L.; MILTON, P.; GUALDI, A. J.; DE OLIVEIRA, A. J. A.; EIRAS, J. A.; GARCIA, D. Magnetodielectric and magnetoelectric correlation in (1-x)PMN-PT/xCFO 0-3 particulate composites. Journal of Alloys and Compounds, v. 829, JUL 15 2020. Web of Science Citations: 0.

ALKATHY, MAHMOUD S.; EIRAS, J. A.; ZABOTTO, FABIO L.; RAJU, K. C. JAMES. Structural, optical, dielectric, and multiferroic properties of sodium and nickel co-substituted barium titanate ceramics. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, JUL 2020. Web of Science Citations: 0.

ROSSI, VINICIUS PRETTI; BONINI, RICARDO PEREIRA; GONCALVES, ANDRE MARINO; GUALDI, ALEXANDRE JOSE; EIRAS, JOSE ANTONIO; ZABOTTO, FABIO LUIS. Silicon substrate orientation influence on structural and magnetic properties of BaFe12O19 thin films obtained by RF magneton sputtering. Journal of Magnetism and Magnetic Materials, v. 504, JUN 15 2020. Web of Science Citations: 0.