CsPb2Br5 Single Crystals: Synthesis and Characterization

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Type
Article
Authors
Dursun, Ibrahim cc
de Bastiani, Michele
Turedi, Bekir cc
Alamer, Badriah Jaber
Shkurenko, Aleksander cc
Yin, Jun cc
Gereige, Issam
Alsaggaf, Ahmed cc
Mohammed, Omar F. cc
Eddaoudi, Mohamed cc
Bakr, Osman cc
KAUST Department
Advanced Membranes and Porous Materials Research Center
Chemical Science Program
Functional Materials Design, Discovery and Development (FMD3)
Functional Nanomaterials Lab (FuNL)
KAUST Catalysis Center (KCC)
KAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
Date
2017-08-30
Online Publication Date
2017-08-30
Print Publication Date
2017-10-09
Permanent link to this record
http://hdl.handle.net/10754/625293

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Abstract
CsPb2Br5 is a ternary halogen-plumbate material with close characteristics to well-reported halide perovskites. Due to its unconventional two-dimensional structure, CsPb2Br5 is being looked at broadly for potential applications in optoelectronics. CsPb2Br5 investigations are currently limited to nanostructures and powder forms of the material, which present unclear and conflicting optical properties. In this study, we present the synthesis and characterization of CsPb2Br5 bulk single crystals, which enabled us to finally clarify the material's optical features. Our CsPb2Br5 crystal has a two-dimensional structure with Pb2Br5- layers spaced by Cs+ cations, and exhibits a ~3.1 eV indirect bandgap with no emission in the visible spectrum.
Citation
Dursun I, De Bastiani M, Turedi B, Alamer B, Shkurenko A, et al. (2017) CsPb2Br5 Single Crystals: Synthesis and Characterization. ChemSusChem. Available: http://dx.doi.org/10.1002/cssc.201701131.
Sponsors
The authors acknowledge the financial support of King Abdullah University of Science and Technology (KAUST) and Saudi Aramco.
Publisher
Wiley
Journal
ChemSusChem
DOI
10.1002/cssc.201701131
PubMed ID
28766308
Additional Links
http://onlinelibrary.wiley.com/doi/10.1002/cssc.201701131/abstract
Collections
Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Functional Materials Design, Discovery and Development (FMD3); Chemical Science Program; Material Science and Engineering Program; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC)