Substance and shadow of formamidinium lead triiodide based solar cells

Abstract

The current decade has witnessed a surge of progress in the investigation of methyl ammonium lead iodide (MAPbI3) perovskites for solar cells fabrication due to their intriguing electro-optical properties, despite...

Lead-free CsSnCl3 perovskite nanocrystals: rapid synthesis, experimental characterization and DFT simulations

“…Sn 2+ , Pb 2+ , Mn 2+ or Ge 2+ ) and X is a halogen (e.g. Cl, Br or I), have gained significant research focus over the past few years due to their promising optoelectronic applications, including semiconducting thin-film transistors, [1,2] light-emitting diodes (LED), [3][4][5][6] solar cells, [7][8][9][10] photodetectors [11,12] and photovoltaics. [13][14][15] Recently, a good number of all-inorganic metal halide perovskites (MHPs), especially cesium (Cs) based perovskites, CsBX 3 have gained a particular attraction due to their fascinating thermal stability [16] as well as intriguing optoelectronic properties.…”

FAPbI3 Perovskite Solar Cells: From Film Morphology Regulation to Device Optimization

“…Various additives have been used for this purpose. [ 72 ] MACl may be one of the most commonly used additives to form continuous, large‐grain FAPbI 3 film. MACl is a volatile additive, which could regulate the nucleation and crystal growth processes but present little effect on the bandgap of perovskite material.…”

Microstrain and Urbach Energy Relaxation in FAPbI3-Based Solar Cells through Powder Engineering and Perfluoroalkyl Phosphate Ionic Liquid Additives

“…The introduction of ILs has been reported to assist in perovskite crystal growth, improving the crystallinity and adjusting the surface defect, which in turn improves the open-circuit voltage ( V OC ) and the stability against atmospheric stresses. However, most of the studies are focused on the imidazolium-based ILs as cations with hexyl side chains. − Mostly, the anionic combinations have been limited to hexafluorophosphate (PF 6 ), tetrafluoroborate (BF 4 ), and halides, which show limited hydrophobicity. The perfluoroalkyl phosphate (PAP) anion-based ILs possess ultrahydrophobicity with improved thermal and electrochemical stability as compared to their PF 6 , BF 4 , and halide counterparts .…”