Starting materials: Lead chloride (PbCl2, 99.999%, Alfa Aesar), methylammonium hydrochloride (CH3NH3Cl, 99%, Alfa Aesar), dimethylformamide (DMF) (C3H7NO, 99.5%, Merck KGaA), and dimethyl sulfoxide (DMSO) (C2H6OS, 99.7%, Sigma-Aldrich)
Product: MAPbCl3 single crystals of size ~2.5 mm × 2 mm × 1 mm
Description: 0.2228 gm of CH3NH3Cl was dissolved in a 3.3 mL DMSO: DMF (1:1) solution using an ultrasonic bath for 10 minutes under an N2 atmosphere at room temperature. In 3 mL of the prepared CH3NH3Cl/DMSO:DMF (1:1) solution, 0.8343 g PbCl2 was added. The mixture was stirred for 20 min until the solution becomes transparent. The solution was filtered using PVDF filter. The filtrate was transferred in a vial and kept in an oil bath undisturbed at 50 °C for 6 ~8 h. After the formation of the crystals, they were dried with a nitrogen gun.
Method: Photoluminescence measurement at 300 K
Description: PL spectrum was recorded with a HORIBA iHR-550 spectrometer, liquid-nitrogen cooled CCD detector, and semiconductor laser operated at 266 nm.
Starting materials: Lead chloride (PbCl2, 99.999%, Alfa Aesar), methylammonium hydrochloride (CH3NH3Cl, 99%, Alfa Aesar), dimethylformamide (DMF) (C3H7NO, 99.5%, Merck KGaA), and dimethyl sulfoxide (DMSO) (C2H6OS, 99.7%, Sigma-Aldrich)
Product: MAPbCl3 single crystals of size ~2.5 mm × 2 mm × 1 mm
Description: 0.2228 gm of CH3NH3Cl was dissolved in a 3.3 mL DMSO: DMF (1:1) solution using an ultrasonic bath for 10 minutes under an N2 atmosphere at room temperature. In 3 mL of the prepared CH3NH3Cl/DMSO:DMF (1:1) solution, 0.8343 g PbCl2 was added. The mixture was stirred for 20 min until the solution becomes transparent. The solution was filtered using PVDF filter. The filtrate was transferred in a vial and kept in an oil bath undisturbed at 50 °C for 6 ~8 h. After the formation of the crystals, they were dried with a nitrogen gun.
Method: UV-Vis absorption
Description: The spectrum was recorded using a combination of a HOROBA iHR-550 spectrometer, Xenon lamp, and liquid-nitrogen cooled CCD detector
Comment: This data was obtained in transmittance mode and the sharp features seen in the data is part of the original published data. Scattering of the crystal is likely responsible for those features.
Crystal system: cubic
| Photoluminescence peak position, nm |
|---|
Starting materials: Lead chloride (PbCl2, 99.999%, Alfa Aesar), methylammonium hydrochloride (CH3NH3Cl, 99%, Alfa Aesar), dimethylformamide (DMF) (C3H7NO, 99.5%, Merck KGaA), and dimethyl sulfoxide (DMSO) (C2H6OS, 99.7%, Sigma-Aldrich)
Product: MAPbCl3 single crystals of size ~2.5 mm × 2 mm × 1 mm
Description: 0.2228 gm of CH3NH3Cl was dissolved in a 3.3 mL DMSO: DMF (1:1) solution using an ultrasonic bath for 10 minutes under an N2 atmosphere at room temperature. In 3 mL of the prepared CH3NH3Cl/DMSO:DMF (1:1) solution, 0.8343 g PbCl2 was added. The mixture was stirred for 20 min until the solution becomes transparent. The solution was filtered using PVDF filter. The filtrate was transferred in a vial and kept in an oil bath undisturbed at 50 °C for 6 ~8 h. After the formation of the crystals, they were dried with a nitrogen gun.
Method: Photoluminescence measurement at 300 K
Description: PL spectrum was recorded with a HORIBA iHR-550 spectrometer, liquid-nitrogen cooled CCD detector, and semiconductor laser operated at 266 nm.