Contributions of the lead-bromine weighted bands to the occupied density of states of the hybrid tri-bromide perovskites

A. R. Kirmani, A. E. Mansour, M. I. Saidaminov, X. Cui, Dong Shi, A. Alofi, Ya B. Losovyj, G. Gurung, T. R. Paudel, A. J. Yost, P. A. Dowben*, E. Y. Tsymbal, A. Amassian, K. Katsiev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The electronic structure of methylammonium lead bromide (CH3NH3PbBr3) single crystals has been investigated through a combination of resonant photoemission and theoretical modeling. There are Pb spectral contributions throughout the valence band. Importantly, the electronic structure at the top of the valence band is found to be dominated by the hybridized Pb-Br bands, not methylammonium bromide. The results line up with the partial density of states obtained from density functional theory and confirm that much of the valence band has some Pb spectral weight.

Original languageEnglish (US)
Article number022101
JournalApplied Physics Letters
Issue number2
StatePublished - Jul 9 2018
Externally publishedYes

Bibliographical note

Funding Information:
The single crystals used in this study were synthesized in the Functional Nanomaterials Lab (FuNL), KAUST, headed by Professor Osman M. Bakr, whose helpful comments on the results and conclusions of this study are acknowledged. The support of King Abdullah University of Science and Technology (KAUST) and Saudi Arabia Basic Industries Corporation (SABIC) is acknowledged. The work at the University of Nebraska was supported by the National Science Foundation through the Nebraska MRSEC (Grant No. DMR-1420645), the Nebraska Center for Energy Science and Research.

Publisher Copyright:
© 2018 Published by AIP Publishing.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Contributions of the lead-bromine weighted bands to the occupied density of states of the hybrid tri-bromide perovskites'. Together they form a unique fingerprint.

Cite this