Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals
Type
ArticleAuthors
de Bastiani, MicheleDursun, Ibrahim

Zhang, Yuhai

Alshankiti, Buthainah

Miao, Xiaohe
Yin, Jun

Yengel, Emre

Alarousu, Erkki
Turedi, Bekir
Almutlaq, Jawaher

Saidaminov, Makhsud I.

Mitra, Somak

Gereige, Issam
Alsaggaf, Ahmed

Zhu, Yihan
Han, Yu

Roqan, Iman S.

Bredas, Jean-Luc

Mohammed, Omar F.

Bakr, Osman

KAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Science Program
Functional Nanomaterials Lab (FuNL)
Imaging and Characterization Core Lab
KAUST Catalysis Center (KCC)
KAUST Solar Center (KSC)
Laboratory for Computational and Theoretical Chemistry of Advanced Materials
Material Science and Engineering Program
Nanostructured Functional Materials (NFM) laboratory
Physical Characterization
Physical Science and Engineering (PSE) Division
Semiconductor and Material Spectroscopy (SMS) Laboratory
Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
Date
2017-08-22Online Publication Date
2017-08-22Print Publication Date
2017-09-12Permanent link to this record
http://hdl.handle.net/10754/625296
Metadata
Show full item recordAbstract
Zero-dimensional perovskite-related structures (0D-PRS) are a new frontier of perovskite-based materials. 0D-PRS, commonly synthesized in powder form, manifest distinctive optical properties such as strong photoluminescence (PL), narrow emission linewidth, and high exciton binding energy. These properties make 0D-PRS compelling for several types of optoelectronic applications, including phosphor screens and electroluminescent devices. However, it would not be possible to rationally design the chemistry and structure of these materials, without revealing the origins of their optical behaviour, which is contradictory to the well-studied APbX3 perovskites. In this work, we synthesize single crystals of Cs4PbBr6 0D-PRS, and investigated the origins of their unique optical and electronic properties. The crystals exhibit a PL quantum yield higher than 40%, the highest reported for perovskite-based single crystals. Time-resolved and temperature dependent PL studies, supported by DFT calculations, and structural analysis, elucidate an emissive behaviour reminiscent of a quantum confined structure rather than a typical bulk perovskite material.Citation
De Bastiani M, Dursun I, Zhang Y, Alshankiti BA, Miao X-H, et al. (2017) Inside Perovskites: Quantum Luminescence from Bulk Cs4PbBr6 Single Crystals. Chemistry of Materials. Available: http://dx.doi.org/10.1021/acs.chemmater.7b02415.Sponsors
The authors acknowledge the financial support of KAUST and Saudi Aramco (Grant RGC/3/3095-01).Publisher
American Chemical Society (ACS)Journal
Chemistry of MaterialsAdditional Links
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b02415ae974a485f413a2113503eed53cd6c53
10.1021/acs.chemmater.7b02415