These data sets are directly related (linked) to each other

Band gap (optical, transmission)
System: (BA)2Csn-1PbnBr3n+1 with n = 2
Origin: experimental (T = 298.0 K)
Space group: Cmc2(1)
Band gap (optical, transmission)

Crystal system: orthorhombic

Band gap (optical, transmission), eV
Fixed parameters:
  • temperature = 298.0 K
H. Chen, J. Lin, J. Kang, Q. Kong, D. Lu, J. Kang, M. Lai, L. N. Quan, Z. Lin, J. Jin, L. Wang, M. F. Toney, and P. Yang, Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes, Science Advances 6, eaay4045‑eaay4045 (2020). doi: 10.1126/sciadv.aay4045.
System description
Dimensionality: D
Sample type: single crystal
Related data
This data set is directly linked to other data sets: See all related data

Starting materials: BABr (synthesized), CsBr, PbBr2, HBr

Product: Yellow single crystals

Description: (BA)2CsPb2Br7 crystals were synthesized by mixing BABr, CsBr, and PbBr2 into a saturated HBr solution at a molar ratio of 3:1:2. Complete dissolution was achieved by heating to 100°C with constant stirring for ~30 minutes. Upon slowly cooling, at a rate of 20°C/min to room temperature, the crystals precipitated. The crystals were removed by suction filtration and were dried in a vacuum.

Method: UV-vis absorption

Description: A Shimadzu UV-3101 UV-vis spectrophotometer was used to measure the absorption spectra.

H. Chen, J. Lin, J. Kang, Q. Kong, D. Lu, J. Kang, M. Lai, L. N. Quan, Z. Lin, J. Jin, L. Wang, M. F. Toney, and P. Yang, Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes, Science Advances 6, eaay4045‑eaay4045 (2020). doi: 10.1126/sciadv.aay4045.

Entry added on: June 25, 2020, 12:46 p.m.
Entry added by: Andrew Levin NREL
Last updated on: May 3, 2022, 3:18 p.m.
Last updated by: Rayan C Duke University
Data correctness verified by:
  • Rayan C Duke University

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Data set ID: 982 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!

Absorption spectrum
System: (BA)2Csn-1PbnBr3n+1 with n = 2
Origin: experimental (T = 298.0 K)
Space group: Cmc2(1)
H. Chen, J. Lin, J. Kang, Q. Kong, D. Lu, J. Kang, M. Lai, L. N. Quan, Z. Lin, J. Jin, L. Wang, M. F. Toney, and P. Yang, Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes, Science Advances 6, eaay4045‑eaay4045 (2020). doi: 10.1126/sciadv.aay4045.
System description
Dimensionality: D
Sample type: single crystal
Related data
This data set is directly linked to other data sets: See all related data

Starting materials: BABr (synthesized), CsBr, PbBr2, HBr

Product: Yellow single crystals

Description: (BA)2CsPb2Br7 crystals were synthesized by mixing BABr, CsBr, and PbBr2 into a saturated HBr solution at a molar ratio of 3:1:2. Complete dissolution was achieved by heating to 100°C with constant stirring for ~30 minutes. Upon slowly cooling, at a rate of 20°C/min to room temperature, the crystals precipitated. The crystals were removed by suction filtration and were dried in a vacuum.

Method: UV-vis absorption

Description: A Shimadzu UV-3101 UV-vis spectrophotometer was used to measure the absorption spectra.

H. Chen, J. Lin, J. Kang, Q. Kong, D. Lu, J. Kang, M. Lai, L. N. Quan, Z. Lin, J. Jin, L. Wang, M. F. Toney, and P. Yang, Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes, Science Advances 6, eaay4045‑eaay4045 (2020). doi: 10.1126/sciadv.aay4045.

Extraction method: Engauge digitizer
Entry added on: June 25, 2020, 12:37 p.m.
Entry added by: Andrew Levin NREL
Last updated on: May 2, 2022, 5:05 p.m.
Last updated by: Rayan C Duke University
Data correctness verified by:
  • Rayan C Duke University

Download data
Data set ID: 979 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!


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