Methylammonium-Free Perovskite Photovoltaic Modules DOI
Liang Chu,

Jinguo Cao,

Congcong Wu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

For perovskite photovoltaic industrialization, it is essential to simultaneously achieve high conversion efficiency, long-term stability, and scalable fabrication of modules. Halide perovskites with the ABX3 structure are composed A-site monovalent cations, (e.g., formamidinium (FA+), methylammonium (MA+), Cs+), B-site divalent cations (predominantly Pb2+), X-site halide anions. Though incorporated MA can facilitate nucleation growth films, their volatility undermines thermal stability. α-FAPbI3 exhibits an optimal bandgap, but both α-CsPbI3 susceptible converting into nonphotoactive δ-phase at room temperature. However, FACsPbI3 alloy effectively counteracts imperfections in tolerance factor, enabling formation a room-temperature photoactive phase. Hence, development large-area, high-quality, MA-free films remains substantial challenge for efficient This review first discusses impact on phase stability structures subsequently examines film mechanism. Then, we summarize modules highlight advances CsPbX3 (Br–/I–), FAPbI3, FACsPbX3 systems. Finally, propose potential directions challenges toward industrialization.

Language: Английский

Bridging theory and experiment in defect-tolerant semiconductors for photovoltaics DOI
Maria S. Hammer,

Hannah Schlott,

Larry Lüer

et al.

Nature Reviews Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Language: Английский

Citations

0
Methylammonium-Free Perovskite Photovoltaic Modules DOI
Liang Chu,

Jinguo Cao,

Congcong Wu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

For perovskite photovoltaic industrialization, it is essential to simultaneously achieve high conversion efficiency, long-term stability, and scalable fabrication of modules. Halide perovskites with the ABX3 structure are composed A-site monovalent cations, (e.g., formamidinium (FA+), methylammonium (MA+), Cs+), B-site divalent cations (predominantly Pb2+), X-site halide anions. Though incorporated MA can facilitate nucleation growth films, their volatility undermines thermal stability. α-FAPbI3 exhibits an optimal bandgap, but both α-CsPbI3 susceptible converting into nonphotoactive δ-phase at room temperature. However, FACsPbI3 alloy effectively counteracts imperfections in tolerance factor, enabling formation a room-temperature photoactive phase. Hence, development large-area, high-quality, MA-free films remains substantial challenge for efficient This review first discusses impact on phase stability structures subsequently examines film mechanism. Then, we summarize modules highlight advances CsPbX3 (Br–/I–), FAPbI3, FACsPbX3 systems. Finally, propose potential directions challenges toward industrialization.

Language: Английский

Citations

0