See all entries for this property (2 total)
Crystal system: orthorhombic
a: | 41.3314 (±0.0011) Å |
b: | 8.0801 (±0.0002) Å |
c: | 8.0836 (±0.0002) Å |
α: | 90° |
β: | 90° |
γ: | 90° |
Starting materials: HBr (48 wt % in H2O, assay >99.99%), 1-(2-Naphthyl)methanamine (95+%) in methanol, PbBr2 (99.999% trace metal basis), DMF
Product: Colorless and laminar crystals.
Description: Add a stoichiometric amount of 48% concentrated HBr into the NMA methanol solution to prepare NMA·HBr. Evaporate methanol to form colorless NMA·HBr crystals. Separate the crystals. Dissolve NMA·HBr (9.5 mg) and PbBr2 (7.3 mg) into DMF (0.2 mL). Separate the crystals after the partial evaporation of DMF.
Method: Single-crystal X-ray diffraction
Description: Single-crystal X-ray diffraction data were collected using a Bruker D8 ADVANCE Series II at room temperature. The crystal structures were solved and refined by Shelxl and Olex software.
Starting materials: (NMA)2PbBr4 crystals, DMF, glass substrates
Product: Thin-film on glass
Description: Dissolve the 2D single crystals into DMF at a concentration 6%∼10% relative to the total weight. Spin-coat at 3000 rpm for 30 s on glass substrates. Anneal in air at 100 °C for 10 min before measurement.
Method: Photoluminescence
Description: The photoluminescence spectra were measured using a Horiba-Jobi-Yvon LabRAM ARAMIS system, with a 325 nm He−Cd laser excitation. The laser beam was collimated and focused through a 40X UV objective onto the sample surface at room temperature.
Crystal system: orthorhombic
Photoluminescence peak position, nm |
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Starting materials: (NMA)2PbBr4 crystals, DMF, glass substrates
Product: Thin-film on glass
Description: Dissolve the 2D single crystals into DMF at a concentration 6%∼10% relative to the total weight. Spin-coat at 3000 rpm for 30 s on glass substrates. Anneal in air at 100 °C for 10 min before measurement.
Method: Photoluminescence
Description: The photoluminescence spectra were measured using a Horiba-Jobi-Yvon LabRAM ARAMIS system, with a 325 nm He−Cd laser excitation. The laser beam was collimated and focused through a 40X UV objective onto the sample surface at room temperature.
Starting materials: (NMA)2PbBr4 crystals, DMF, glass substrates
Product: Thin-film on glass
Description: Dissolve the 2D single crystals into DMF at a concentration 6%∼10% relative to the total weight. Spin-coat at 3000 rpm for 30 s on glass substrates. Anneal in air at 100 °C for 10 min before measurement.
Method: UV-vis absorption
Description: Optical absorption spectra were obtained using a Shimadzu UV-3600 spectrophotometer.
See all entries for this property (2 total)
Crystal system: tetragonal
Code: FHI-aims
Level of theory: Density Functional Theory (DFT)
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: intermediate