Starting materials: PbI2, BiI3, C6H5C2H4NH3I
Product: dark, red, platelike crystals, with a bismuth ratio Pb/Bi of approx. 0.3%
Description: Under an argon atmosphere, lead iodide (PbI2), bismuth iodide (BiI3) and phenylethylammonium iodide (C6H5C2H4NH3I) were mixed at a molar ratio of 0.9:0.1:2 and heated at 333K for a duration of 30 min. As a solvent, nitromethane was added for crystallization.
Method: Photoluminescence
Description: As a detector, a charge-coupled device (CCD) camera cooled by liquid nitrogen and equipped with a polychromator was utilized. PL spectra were measured with an excitation by Xe-lamp light at 2.48 eV.
Starting materials: PbI2, BiI3, C6H5C2H4NH3I
Product: dark, red, platelike crystals, with a bismuth ratio Pb/Bi of approx. 0.3%
Description: Under an argon atmosphere, lead iodide (PbI2), bismuth iodide (BiI3) and phenylethylammonium iodide (C6H5C2H4NH3I) were mixed at a molar ratio of 0.9:0.1:2 and heated at 333K for a duration of 30 min. As a solvent, nitromethane was added for crystallization.
Method: Photoluminescence excitation
Description: As a detector, a charge-coupled device (CCD) camera cooled by liquid nitrogen and equipped with a polychromator was utilized. PL spectra were measured with an excitation by Xe-lamp light at 2.48 eV. PLE spectra represent detected PL at 1.4 eV.
Starting materials: PbI2, BiI3, C6H5C2H4NH3I
Product: dark, red, platelike crystals, with a bismuth ratio Pb/Bi of approx. 0.3%
Description: Under an argon atmosphere, lead iodide (PbI2), bismuth iodide (BiI3) and phenylethylammonium iodide (C6H5C2H4NH3I) were mixed at a molar ratio of 0.9:0.1:2 and heated at 333K for a duration of 30 min. As a solvent, nitromethane was added for crystallization.
Method: Optical absorption measurement
Description: As a detector, a charge-coupled device (CCD) camera cooled by liquid nitrogen and equipped with a polychromator was utilized. A halogen lamp was used as a probe light for optical absorption measurements.
See all entries for this property (3 total)
Starting materials: PbI2, BiI3, C6H5C2H4NH3I
Product: dark, red, platelike crystals, with a bismuth ratio Pb/Bi of approx. 0.3%
Description: Under an argon atmosphere, lead iodide (PbI2), bismuth iodide (BiI3) and phenylethylammonium iodide (C6H5C2H4NH3I) were mixed at a molar ratio of 0.9:0.1:2 and heated at 333K for a duration of 30 min. As a solvent, nitromethane was added for crystallization.
Method: PL-spectroscopy
Description: As a detector, a charge-coupled device (CCD) camera cooled by liquid nitrogen and equipped with a polychromator was utilized. PL spectra were measured with an excitation by Xe-lamp light at 2.48 eV.
DOI for this data set: 10.1103/PhysRevB.70.205330
Data set ID: 1939 Did you find any mistakes or inconsistencies about this data? Send us a note and we'll have a look at it and send you a reply. Thanks!Starting materials: PbI2, BiI3, C6H5C2H4NH3I
Product: dark, red, platelike crystals, with a bismuth ratio Pb/Bi of approx. 0.3%
Description: Under an argon atmosphere, lead iodide (PbI2), bismuth iodide (BiI3) and phenylethylammonium iodide (C6H5C2H4NH3I) were mixed at a molar ratio of 0.9:0.1:2 and heated at 333K for a duration of 30 min. As a solvent, nitromethane was added for crystallization.
Method: PLE-spectroscopy
Description: As a detector, a charge-coupled device (CCD) camera cooled by liquid nitrogen and equipped with a polychromator was utilized. PL spectra were measured with an excitation by Xe-lamp light at 2.48 eV. PLE spectra represent detected PL at 2.35 eV.
Comment: Note that the x axis of PLE spectroscopy is the excitation frequency, which is varied in this experiment, while the y axis is the PL intensity measured at fixed energy (here, 2.35 eV).
DOI for this data set: 10.1103/PhysRevB.70.205330
Data set ID: 1940 Did you find any mistakes or inconsistencies about this data? Send us a note and we'll have a look at it and send you a reply. Thanks!See all entries for this property (4 total)
Starting materials: Following Reference Ref. T. Ishihara, Optical Properties of Low-Dimensional Materials, edited by T. Ogawa and Y. Kanemitsu (World Scientific, Singapore, 1995), Chap. 6, pp. 289–339: Pbl2, 99.9% ~ 99.99%, phenethylamine, hydroiodic acid (HI) in aqueous solution. PbI2 needs to be distilled in vacuum (10^-2 - 10^3 Torr) at 400 degrees C, with the distillation process repeated several times, in order to remove residual impurities in 99.99% starting material.
Product: Phenethylammonium lead iodide crystals, prepared according to Ref. T. Ishihara, Optical Properties of Low-Dimensional Materials, edited by T. Ogawa and Y. Kanemitsu (World Scientific, Singapore, 1995), Chap. 6, pp. 289–339. That reference obtains orange platelets, typically 2x5x0.1 mm^3 in size.
Description: The undoped phenethyammonium lead iodide crystals (to which the data shown here pertains) were prepared according to Ref. T. Ishihara, Optical Properties of Low-Dimensional Materials, edited by T. Ogawa and Y. Kanemitsu (World Scientific, Singapore, 1995), Chap. 6, pp. 289–339. The present reference (doi: 10.1103/PhysRevB.70.205330) does not provide any further details on the synthesis of the undoped crystals in question. According to the 1995 reference, first synthesize phenethylammonium iodide (according to the reference, this is a simple modification of the syntesis of decylammonium iodide). Mix stoichiometric amounts of hydroiodic acid (aqueous solution) and phenethylamine in a beaker, cooled with ice, in oxygen-free atmosphere. Then, evaporate the water at elevated temperature. Sublime the material at 140 deg C to remove residual water, iodide and potentially other impurities. Then mix purified phenethylammonium iodide and lead iodide in acetone, heated up to 40 deg C. After reaction, filter to remove unreacted PbI2. Then precipitate phenethylammonium lead iodide single crystals by adding a poor solvent such as nitromethane. The full description of the synthesis is only provided for decylammonium lead iodide in the 1995 reference and the precipitation time of the crystals is stated to be 2-4 weeks.
Method: optical absorption measurement
Description: As a detector, a charge-coupled device (CCD) camera cooled by liquid nitrogen and equipped with a polychromator was utilized. A halogen lamp was used as a probe light for optical absorption measurements.
Comment: Note that only the onset of the absorption spectrum is shown, in line with the data shown in the original reference for undoped phenethyammonium lead iodide.
DOI for this data set: 10.1103/PhysRevB.70.205330
Data set ID: 1941 Did you find any mistakes or inconsistencies about this data? Send us a note and we'll have a look at it and send you a reply. Thanks!