Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.382
Publication date: 18th December 2023
The development of efficient solar cells based on perovskite materials has emerged as a promising path for advancing photovoltaic technology. Specifically, 2D perovskites (2D-PVKs) have been found to exhibit higher stability properties against their 3D counterparts [1]. However, many factors are essential for an effective construction of these devices. Solvent engineering plays a critical role in controlling the crystalline structure and optoelectronic properties of 2D perovskites [2]. However, the existing and research-dominant perovskite solar cells (PSCs) base their formulations on highly toxic solvents such as DMF, increasing potential health risks for researchers and the environment [3].
Herein, we mainly focused on the development of novel solvent formulations, tailored to the specific requirements of 2D perovskite fabrication. Following solvent’s solubility parameters, we predict novel and green solvents that significantly enable the formation and growth of perovskite crystals. These new solvents along with the state-of-the-art fabrication processes aim to provide an enhanced control over crystal growth, minimizing defects, while meeting existing efficiencies of solar cells. All while prioritizing sustainable and environmentally green practices.
Our research extends beyond solvent considerations, seeking to use these new formulations to not only enhance efficiencies but also to contribute to the long-term stability that 2D PVKs offer. The strategic selection of solvents aims to mitigate degradation mechanisms, such as ion migration and moisture-induced instabilities, which are well-known challenges in perovskite solar cell technology.
In conclusion, this project underscores the role of solvent engineering and the selection of non-hazardous solvents in the fabrication of 2D perovskite films, and its further use in solar devices. The ongoing efforts to develop novel solvent formulations represent a stride towards a deeper understanding of perovskite crystallization and heighten the potential of these materials for its widespread adoption in energy conversion technologies.
This work is supported by M-ERA-NET under the project PHANTASTIC.
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