Scalable fabrication of formamidinium lead triiodide perovskite solar cells in ambient air
| dc.contributor.author | Zhang, Dongyang | |
| dc.contributor.supervisor | Saidaminov, Makhsud | |
| dc.date.accessioned | 2025-04-30T22:14:24Z | |
| dc.date.available | 2025-04-30T22:14:24Z | |
| dc.date.issued | 2025 | |
| dc.degree.department | Department of Chemistry | |
| dc.degree.level | Doctor of Philosophy PhD | |
| dc.description.abstract | Formamidinium lead iodide (FAPbI3)-based perovskite solar cells (PSCs) have emerged as highly promising candidates for next-generation photovoltaic technologies, owing to their ideal optoelectronic properties, narrow bandgap, and superior thermal stability. However, challenges such as phase instability, defect formation, and the need for scalable fabrication techniques remain significant barriers to their commercialization. This work aims to address these issues through a comprehensive study on the stabilization of the photoactive α-FAPbI3 phase and the development of ambient-compatible scalable fabrication methods. To stabilize the α-FAPbI3 phase, small ions doping strategies using heterovalent and homovalent additives—specifically bismuth (Bi3+) and cadmium (Cd2+)—are investigated. The influence of these dopants on the crystallographic structure, photophysical properties, and defect passivation is systematically analyzed. Furthermore, a scalable blade-coating technique is employed to fabricate high-quality FAPbI3 thin films under ambient air conditions, bridging the gap between laboratory-scale research and industrial-level production. The work provides a comprehensive evaluation of doping-induced improvements in phase stability, film morphology, and photovoltaic performance. Additionally, the impact of precursor stoichiometry on crystal growth mechanisms is explored to provide insights into optimizing perovskite material quality. The integration of small ions doping and blade-coating techniques offers a promising pathway toward the commercial realization of efficient, stable, and scalable FAPbI3-based perovskite solar cells in ambient air. | |
| dc.description.scholarlevel | Graduate | |
| dc.identifier.bibliographicCitation | 1, Kundu, S., Zhang, D., Askar, A. M., Moloney, E. G., Adachi, M. M., Nadeem, A., ... & Saidaminov, M. I. (2022). Bismuth stabilizes the α-phase of formamidinium lead iodide perovskite single crystals. ACS Materials Letters, 4(4), 707-712. | |
| dc.identifier.bibliographicCitation | 2, D. Zhang, S. Khasnabis, W. Wang, V. Yeddu, S. Moradi, M. Awais, H.-D. Nguyen, S. B. Reinecke, Y. Haruta, R. Godin, F. Tan, M. I. Saidaminov, Cadmium-Doping Slows Trap Emptying in Ambient-Air Blade-Coated Formamidinium Lead Iodide Perovskite Solar Cells. Adv. Energy Mater. 2024, 14, 2303858. | |
| dc.identifier.uri | https://hdl.handle.net/1828/22080 | |
| dc.language | English | eng |
| dc.language.iso | en | |
| dc.rights | Available to the World Wide Web | |
| dc.subject | Perovskite solar cells | |
| dc.subject | Formamidinium lead iodide | |
| dc.subject | small ions doping | |
| dc.subject | blade coating method | |
| dc.title | Scalable fabrication of formamidinium lead triiodide perovskite solar cells in ambient air | |
| dc.type | Thesis |