Photophysics of Methylammonium Lead Tribromide Perovskite: Free Carriers, Excitons, and Sub‐Bandgap States

Droseros, Nikolaos; Tsokkou, Dimitra; Banerji, Natalie (2020). Photophysics of Methylammonium Lead Tribromide Perovskite: Free Carriers, Excitons, and Sub‐Bandgap States. Advanced energy materials, 10(13), p. 1903258. Wiley 10.1002/aenm.201903258

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Methylammonium lead tribromide perovskite, one of the first artificially synthesized perovskites, can be used in multijunction solar cells and for light-emitting applications. Its structure leads to a wide direct bandgap, a high extinction coefficient for absorption, and an exciton binding energy that is higher than the thermal energy at room temperature. The broad range of studies performed on the optical phenomena in this material has revealed the contribution of free carriers, excitons, and defect states to its photoluminescence properties. The present report aims to highlight the role played by the different primary photoexcitations, by defects and a variety of optical phenomena (dual emission, reabsorption, photon-recycling, Rashba-splitting) on the observed excited-state properties of this semiconductor. Focus is given to the manifestation of these properties in different spectroscopic measurements.

Item Type:

Journal Article (Review Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Droseros, Nikolaos; Tsokkou, Dimitra and Banerji, Natalie

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

1614-6832

Publisher:

Wiley

Language:

English

Submitter:

Olivier Nicolas Ludovic Bardagot

Date Deposited:

24 Feb 2020 17:21

Last Modified:

12 Apr 2020 02:48

Publisher DOI:

10.1002/aenm.201903258

BORIS DOI:

10.7892/boris.140193

URI:

https://boris.unibe.ch/id/eprint/140193

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