Structural, optical, and electronic studies of wide-bandgap lead halide perovskites

Riccardo Comin, Grant Walters, Emmanuel Sol Thibau, Oleksandr Voznyy, Zheng-Hong Lu, Edward H. Sargent

Research output: Contribution to journalArticlepeer-review

132 Scopus citations

Abstract

© The Royal Society of Chemistry 2015. We investigate the family of mixed Br/Cl organolead halide perovskites which enable light emission in the blue-violet region of the visible spectrum. We report the structural, optical and electronic properties of this air-stable family of perovskites, demonstrating full bandgap tunability in the 400-550 nm range and enhanced exciton strength upon Cl substitution. We complement this study by tracking the evolution of the band levels across the gap, thereby providing a foundational framework for future optoelectronic applications of these materials.
Original languageEnglish (US)
Pages (from-to)8839-8843
Number of pages5
JournalJ. Mater. Chem. C
Volume3
Issue number34
DOIs
StatePublished - 2015
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-009-21
Acknowledgements: This publication is based in part on work supported by Award KUS-11-009-21, made by the King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund Research Excellence Program, and by the Natural Sciences and Engineering Research Council.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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