The synergistic effect of dry air and surfactants enables water to be a promising green solvent for stable and efficient perovskite solar cells

Abstract

In recent years, the perovskite has emerged as a prominent one to compete with all other existing PV materials. However, its fabrication typically involves the use of toxic organic solvents....

Annual research review of perovskite solar cells in 2023

“…PSCs fabricated from PbCO 3 NFs exhibited an average PCE of 23.64% under dry air conditions and showed excellent stability under continuous light exposure. Later, the team investigated the crystallization of Pb(NO 3 ) 2 at different RHs [333]. Moisture in ambient air played a key role in the rate of nucleation of Pb(NO 3 ) 2 (figure 25(c)).…”

“…(c) Schematic of crystallization under different relative humidity. Reproduced from[333] with permission from the Royal Society of Chemistry.…”

Unraveling the Influence of Solvent on Side Reactions between Formamidinium Lead Triiodide and Methylammonium Cations

“…On the other hand, water, as the most important protic solvent, directly impacts the stability of the FAPbI 3 perovskite precursor solution. At the same time, humidity (water) also plays complex and mysterious roles in preparing high-efficiency and long-term stable devices. − This proves that water could affect the reliability and quality of large-scale industrial preparation of PSCs. Kerner et al reported that trace water is a benign impurity in the formation of MFAI .…”

Ecofriendly Solution Processing of Perovskite Solar Cells Using Water

“…The first study demonstrating the formation of a perovskite film using water for PSC devices with a PCE of 12.58% was reported in 2015 . Subsequent investigations have delved into the kinetic intricacies of crystal formation, leading to adjusted perovskite compositions that enhance the performance of PSCs with current record PCE of 24.14%, − demonstrating the potential of water-based solution processing in PSC fabrication.…”

“…(c) J – V curves of the champion PSCs made under low-humidity conditions and with different concentrations of potassium oleate additive. The figure is reproduced from ref . Copyright The Royal Society of Chemistry 2024.…”