Photoferroelectric perovskite solar cells: Principles, advances and insights

Defect Passivation with Metal Cations toward Efficient and Stable Perovskite Solar Cells Exceeding 22.7% Efficiency

“…Detailed preparation of the perovskite films and planar heterojunction device are given in the Supporting Information (experimental section). The tolerance factor ( t ) of CsFAMA without Cd 2+ is 0.972 while that of the one with 1% Cd 2+ increases to 0.973, calculated by the following formula: , where r A , r B , and r X are ionic radii of A, B, and X sites, respectively. , This higher dosage of Cd 2+ incorporated in CsFAMA has no change on the perovskite structure as it is shown to have a similar t value with the control perovskite. Thus, Cd 2+ used in our work is supposed to have a little effect on the perovskite structure.…”

CsPbI3 perovskite quantum dot solar cells: opportunities, progress and challenges

“…The fundamental crystal structure of all-inorganic perovskites (CsPbX 3 ) is identical to methylammonium lead iodide (CH 3 NH 3 PbI 3 ), which is often used as an archetypical reference compound. 6 These compounds are based on the ABX 3 formula. The B cation can be found at the center of octahedra space surrounded by six halide ions (BX 6 ).…”

“…However, obtaining a high quality silicon-based active layer with a melting point greater than 1400 o C requires an expensive fabrication process due to extremely high processing temperatures which limits the commercialization on a large scale. 5,6 To overcome these obstacles, third generation solar cells have the capability to overcome the day-by-day energy crises and also provide a straightforward low-temperature fabrication process. 7 In such types of solar cells, perovskites are one the most promising candidates used as a sensitizer for the first time in a liquid electrolyte in 2009 with 3.8% 8 .…”

Structural, Optical and Photocatalytic Activity of The Cerium Doped Ba2TiMoO6 Double Perovskite.

“…Several methods were used to synthesize Perovskite materials, i.e. Zhang et al used the hydrothermal method to synthesize the R2MnNiO6 (R=Pr, Sm, and Ho) perovskite in aqueous potassium hydroxide [27], Xu et al used the sol-gel method to synthesize the A2NiWO6 (A = Ca, Sr) nanorods [28], and the solid-state reaction method for the preparation of A2FeMoO6 (A=Ba, Sr, Ca) in vacuum-sealed silica bulb, with precursors BaO/SrO, Fe2O3, MoO3, and metallic Mo mixed stoichiometrically by performing heat treatments ranging from 900 to 1000 ºC with intermediate grinding [23][24][25]29]. These materials had various technological applications such as magnetoelectronic devices because of their giant magnetoresistance (GMR) [30] used in the heads of hard disk drives [31], solar cells [32], solid oxide fuel cells [26,33], and membranes with selective permeability [34].…”