See all entries for this property (3 total)
Crystal system: triclinic
a: | 39.01481456 Å |
b: | 12.09647627 Å |
c: | 12.22481263 Å |
α: | 90.0346079° |
β: | 91.076978° |
γ: | 90.03861881° |
Code: FHI-aims
Level of theory: density functional theory
Exchange-correlation functional: HSE06 α = 0.25, ω = 0.11/bohr
Level of relativity: with spin-orbit coupling
Comment: Using the experimental structure of AE4TPbBr4 [1], also in Dataset ID 217. Replace the Br atoms with I. Refer to SI Part IX for more details. [1] D. B. Mitzi, K. Chondroudis, and C. R. Kagan, Inorg. Chem. 38, 6246 (1999).
See all entries for this property (2 total)
Crystal system:
Code: FHI-aims
Level of theory: density functional theory
Exchange-correlation functional: HSE06 α = 0.25, ω = 0.11/bohr
K-point grid: 3x3x3
Level of relativity: atomic ZORA with spin-orbit coupling
Basis set definition: tight
See all entries for this property (2 total)
Starting materials: AE4T*2HI, PbI2
Product: AE4TPbI4 film on glass or quartz
Description: Thin film growth by RIR-MAPLE method from a 4 mM solution of the precursor salts using a 1:1 vol:vol blend of DMSO and ethylene glycol as the solvent. Films are annealed in nitrogen at 200 C for 30 min after deposition.
Method: UV-vis absorption
Description: UV-vis spectra were collected using a Shimadzu UV-3600 spectrophotometer using a blank substrate as reference.
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Starting materials: AE4T*2HI, PbI2
Product: AE2TPbI4 film on glass or quartz
Description: Thin film growth by RIR-MAPLE method from a 8 mM solution of the precursor salts using a 1:1 vol:vol blend of DMSO and ethylene glycol as the solvent. Films are annealed in nitrogen at 150 C for 10 min after deposition.
Method: Photoluminescence
Description: Steady-state PL spectra were recorded using Edinburgh Instruments FS920 fluorimeter that was equipped with a 450 W xenon arc lamp as the excitation source, and a Peltier-cooled Hamamatsu R2658P photomultiplier tube.
Starting materials: (AEQT)PbI4, quartz, acetone, ethanol
Product: (AEQT)PbI4 thin film. Film thickness between 500 Å and 900 Å.
Description: To prepare (AEQT)PbI4, sonicate quartz samples in 2% (w/v) detergent solution in water (20 min), then sonicate in acetone (20 min) and ethanol (20 min). Boil in ethanol (5 min) and place in a 130 °C oven to dry. Add 0.003 g of (AEQT)PbI4 compounds to 0.1 mL of methanol, and sonicate again for 10 min. Place the charge dropwise via a syringe on the tantalum heater of the SSTA chamber. Close chamber and evacuate all solvent with a rotary mechanical pump. Switch on a turbomolecular pump, and pump system to approximately 10^{-7} Torr. To initiate the evaporation, pass a large current of approximately 65 A through the heater for about 4 s. Anneal the (AEQT)PbI4 films at 200 °C for 30 min.
Comment: Single source thermal ablation (SSTA) technique.
Method: Spectrofluorometer
Description: Photoluminescence excitation (PLE) spectra was recorded at room temperature on a Spex Fluorolog-2 spectrofluorometer using the front-face geometry. Light from a xenon arc lamp was used as the excitation source, after being passed through a SPEX 1680 0.22 m double monochromator. The wavelength was 540 nm.
Comment: Refer to Figure 9.
See all entries for this property (2 total)
Crystal system: unknown
Code: FHI-aims
Level of theory: density functional theory
Exchange-correlation functional: HSE06 α = 0.25, ω = 0.11/bohr
K-point grid: 3x3x3
Level of relativity: atomic ZORA with spin-orbit coupling
Basis set definition: tight