α-FAPbI3 powder presynthesized by microwave irradiation for photovoltaic applications

Ionic Mobility and Charge Carriers Recombination Analyzed in Triple Cation Perovskite Solar Cells

“…The MA x FA 1−x PbI 3 structure improves the stability of the film, thereby overcoming the instability of the FAPbI 3 phase at ambient temperature [48,56]. FAPbI 3 has two phases, the black phase, α-FAPbI 3 [57], and the yellow phase, δ-FAPbI 3 [58]. At ambient temperature, the black phase can change to yellow phase in a change associated with crystallization [59,60].…”

Microwave-Mediated Synthesis of Lead-Free Cesium Titanium Bromide Double Perovskite: A Sustainable Approach

“…In this study, we present a novel, facile, and scalable microwave (MW)-mediated solution synthesis for Cs 2 TiBr 6 perovskite. This method offers advantages in terms of simplicity, energy-cost, and speed in the synthesis of many other materials. − Here, we develop a specific protocol for obtaining Cs 2 TiBr 6 , minimizing the handling of toxic reagents and avoiding the need for high-energy or high-vacuum setups. The use of acetonitrile as a solvent – with a low boiling point – enhances reaction kinetics and promotes the crystallization of the targeted Cs 2 TiBr 6 phase.…”

Ethanol purification enables high-quality α-phase FAPbI3 perovskite microcrystals for commercial photovoltaic applications

“…18 In preparing the perovskite solutions to fabricate a thin film, it has been reported that devices derived from synthesized perovskite powders are more stable and efficient than those from mixtures of precursors of organic cation halides and lead halides. [19][20][21][22][23][24] The synthesis of the powders requires various organic solvents such as toluene, diethyl ether, or acetonitrile to purify the reactant of unreacted chemicals, impurities, and reaction solvents. These solvents are classified as being of concern or unsuitable for use in industry.…”