Here, we systematically study the role of FA in the sequential crystallization of FAxMA1-xPbI3-yCly mixed-ion perovskite prepared by recrystallization-assisted bath-immersion method. A dramatic different morphology of bath-immersed perovskite films is observed when using FA and MA based bath ...
The Raman spectra of the FAxMA1xPbI3 thin films, consisting of five typical peaks at 68.5 cm1, 77.5 cm1, 84.6 cm1, 139.1 cm1, and 283.2 cm1, barely shifted with incorporation of FA+. In addition, the dipping time was shortened by using mixed solvents to prepare the PbI2 thin films. ...
Highly Stable FAxMA1xPbI3xBrx–2P Precursor for Crystalizing High‐Quality, Large‐Area Perovskite Film in an Ambient Atmospherenonvolatile complexantsperovskite submodulesspin-assisted solvent extractionPerovskite solar cells (PSCs) are one of the highly promising new-generation\nphotovoltaic technologies...
Consequently, the power conversion efficiency of MAPbI3 perovskite solar cells using the NiO/Ag/NiO (30/7/30 nm) hole transport layer was improved from 11.02 to 11.68%. To broaden light absorption, various FAxMA1xPbI3 active layers were obtained by blending various formamidine iodide (FAI) ...