Fapbi3 Cif File //free\\
This is the required for high-efficiency solar cells. In its ideal state at higher temperatures, FAPbI crystallizes in a cubic perovskite structure (Space Group
The search is almost certainly for Formamidinium Lead Iodide ($\alpha$-FAPbI$_3$) , a star material in the field of photovoltaics.
This format is universally supported by software used in materials science, including VESTA, Materials Studio, Quantum ESPRESSO, and VASP.
The dimensions of the unit cell. For the cubic -phase, these values are equal (typically around fapbi3 cif file
data_FAPbI3_alpha _symmetry_space_group_name_H-M 'P m -3 m' _cell_length_a 6.362 _cell_length_b 6.362 _cell_length_c 6.362 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Pb Pb 0.00000 0.00000 0.00000 I I 0.00000 0.50000 0.50000 C C 0.50000 0.50000 0.50000 N N 0.34200 0.50000 0.50000 N N 0.65800 0.50000 0.50000 H H 0.44000 0.50000 0.50000 ... (remaining hydrogen atoms)
It is thermodynamically unstable at room temperature and tends to transition into the non-perovskite phase without chemical stabilization. 2. The Yellow Phase ( Crystal System: Hexagonal (typically space group
-phase at room temperature remains a primary focus in perovskite research. Where to Download FAPbI3 CIF Files You can find validated CIF files for FAPbI3FAPbI sub 3 in several open-access crystallographic databases: This is the required for high-efficiency solar cells
A large, free collection of crystal structures. Search using the constituent elements (C, H, N, Pb, I).
loop_ _space_group_symop_operation_xyz 'x, y, z' '-x, -y, z' '-x, y, -z' 'x, -y, -z' 'z, x, y' ...
contains the essential geometric data to describe its crystal structure, including lattice parameters, space group, and atomic coordinates. cap F cap A cap P b cap I sub 3 Phases in CIF Data -Phase (Cubic): The photoactive "black phase" used in solar cells. Space Group: in some computational models). Lattice Constant: at room temperature. Characteristics: High symmetry with the cap F cap A raised to the positive power cation at the center of cap P b cap I sub 6 octahedra. -Phase (Hexagonal): The non-photoactive "yellow phase" that cap F cap A cap P b cap I sub 3 often degrades into at room temperature. Space Group: Structure: Non-perovskite arrangement where cap P b cap I sub 6 octahedra share faces instead of corners. ACS Publications Key Components of an cap F cap A cap P b cap I sub 3 A standard CIF for the cubic phase typically includes: Lattice Parameters: Defining the unit cell dimensions ( ) and angles ( Symmetry Information: The dimensions of the unit cell
The file acts as the input for quantum mechanical simulations (VASP, Quantum Espresso) to calculate band structures, density of states (DOS), and phase stability.
is thermodynamically unstable and tends to spontaneously degrade into the yellow
The most accurate structural parameters often come directly from the seminal papers. The definitive structure was elucidated by researchers like M. Grätzel and colleagues.