Crystal system: cubic
| Photoluminescence peak position, nm |
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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: 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.