High-Performance Perovskite Solar Cells Enabled by Reduced MACl Additives in NMP-Based Solvents DOI Creative Commons
Jun Gong, Simon MoonGeun Jung,

Gyu Min Kim

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(10), P. 2542 - 2542

Published: May 14, 2025

Methylammonium chloride (MACl) in perovskite solar cells (PSCs) is a key additive known to enhance film quality dimethyl sulfoxide (DMSO)-based systems, where an optimal concentration of 50 mol% typically required. However, alternative solvent such as N-methyl-2-pyrrolidone (NMP), have shown potential reduce concentrations while maintaining high performance. This study explored the NMP/DMF (1:9) system and its impact on MACl optimization. The NMP-based systems was reduced 20–30 mol%, representing substantial decrease from required DMSO-based formulations. Films produced under these conditions exhibited superior crystallinity, evidenced by narrower full-width at half maximum (FWHM) values X-ray diffraction (XRD), defect densities. These structural improvements translated into enhanced optoelectronic properties, with devices achieving efficiency exceeding 23%, compared ~20% for counterparts. Furthermore, demonstrated improved long-term stability continuous illumination.

Language: Английский

High-Performance Perovskite Solar Cells Enabled by Reduced MACl Additives in NMP-Based Solvents DOI Creative Commons
Jun Gong, Simon MoonGeun Jung,

Gyu Min Kim

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(10), P. 2542 - 2542

Published: May 14, 2025

Methylammonium chloride (MACl) in perovskite solar cells (PSCs) is a key additive known to enhance film quality dimethyl sulfoxide (DMSO)-based systems, where an optimal concentration of 50 mol% typically required. However, alternative solvent such as N-methyl-2-pyrrolidone (NMP), have shown potential reduce concentrations while maintaining high performance. This study explored the NMP/DMF (1:9) system and its impact on MACl optimization. The NMP-based systems was reduced 20–30 mol%, representing substantial decrease from required DMSO-based formulations. Films produced under these conditions exhibited superior crystallinity, evidenced by narrower full-width at half maximum (FWHM) values X-ray diffraction (XRD), defect densities. These structural improvements translated into enhanced optoelectronic properties, with devices achieving efficiency exceeding 23%, compared ~20% for counterparts. Furthermore, demonstrated improved long-term stability continuous illumination.

Language: Английский

Citations

0