Crystal system: monoclinic
| a: | 12.4948 (±0.0003) Å |
| b: | 19.7152 (±0.0004) Å |
| c: | 12.5841 (±0.0003) Å |
| α: | 90° |
| β: | 96.4396 (±0.0008)° |
| γ: | 90° |
Starting materials: ImEAI, PbI2, HI
Product: orange plate
Description: ImEAI was purchased from Sigma Aldrich. Then, stoichiometric amounts of PbI2 (purchased from Sigma Aldrich) and ImEAI were added to concentrated stabilized aqueous HI. The concentration of the solution was maintained at 0.25-0.30M of Pb2+. The solution was heated at 140ºC and stirred for an hour. The resulting clear solution was cooled slowly to room temperature.
Method: Single Crystal X-ray Diffraction
Description: Data was collected with a BrukerX8 CCD area detector diffractometer, with Mo Kα radiation (0.71073Å) at 100 K. SAINT and SADABS packages were used for data reduction and absorption corrections, respectively.
Crystal system: monoclinic
| Band gap (optical, transmission), eV |
|---|
Starting materials: N/A
Description: Thin films were prepared by dissolving (ImEA)[PbI4] (0.50M) in DMF and was spin-coated onto glass substrates at 3000 rpm for 30 s. The films were then heated to 130ºC for 10 minutes.
Starting materials: (ImEA)[PbI4] (synthesized), DMF
Description: Thin films were prepared by dissolving (ImEA)[PbI4] (0.50M) in DMF and were spin-coated onto glass substrates at 3000 rpm for 30 s. The films were then heated to 130ºC for 10 minutes.
Method: Photoluminescence
Description: Excitation at 405 nm. Data was collected with a Horiba Fluoromax-3 spectrometer with a 0.5nm wavelength resolution.
Starting materials: N/A
Description: Thin films were prepared by dissolving (ImEA)[PbI4] (0.50M) in DMF and was spin-coated onto glass substrates at 3000 rpm for 30 s. The films were then heated to 130ºC for 10 minutes.
Method: UV-Vis absorption
Description: Data was collected with a SHIMADZU UV-3600 spectrophotometer and an integrated sphere (ISR-3100) in the wavelength range 300-800 nm.