@article{07f02ee6c8754305812d58fcbaaf7c9a,
title = "Laplace current deep level transient spectroscopy measurements of defect states in methylammonium lead bromide single crystals",
abstract = "We present a measurement of the energies and capture cross-sections of defect states in methylammonium lead bromide (MAPbBr3) single crystals. Using Laplace current deep level transient spectroscopy (I-DLTS), two prominent defects were observed with energies 0.17 eV and 0.20 eV from the band edges, and further I-DLTS measurements confirmed that these two defects are bulk defects. These results show qualitative agreement with theoretical predictions, whereby all of the observed defects behave as traps rather than as generation-recombination centers. These results provide one explanation for the high efficiencies and open-circuit voltages obtained from devices made with lead halide perovskites.",
author = "Rosenberg, {John W.} and Legodi, {Matshisa J.} and Yevgeny Rakita and David Cahen and Mmantsae Diale",
note = "Funding Information: We thank Professor Franc¸ois D. Auret for many fruitful discussions regarding DLTS, along with much helpful advice regarding the experimental procedures and Professor Gary Hodes for helpful discussions regarding the interpretation of these results. We thank Hadar Kaslasi for providing several crystals that we used to test our diode configuration. At the WIS this work was supported in part by the Israel Ministry of Science{\textquoteright}s Tashtiot program. At U Pretoria this work was supported in part by the NRF Nanotechnology Flagship Program (Project No. 88021). D.C. holds the Sylvia and Rowland Schaefer Chair in Energy Research. Publisher Copyright: {\textcopyright} 2017 Author(s).",
year = "2017",
month = oct,
day = "14",
doi = "https://doi.org/10.1063/1.4995970",
language = "English",
volume = "122",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics",
number = "14",
}