Perovskite-fullerene hybrid materials suppress hysteresis in planar diodes.
Ip, Alexander H
McDowell, Jeffrey J
Quan, Li Na
Kim, Dong Ha
Hill, Ian G
Sargent, Edward H.
KAUST Grant NumberKUS-11-009-21
Online Publication Date2015-05-08
Print Publication Date2015-12
Permanent link to this recordhttp://hdl.handle.net/10754/596808
MetadataShow full item record
AbstractSolution-processed planar perovskite devices are highly desirable in a wide variety of optoelectronic applications; however, they are prone to hysteresis and current instabilities. Here we report the first perovskite-PCBM hybrid solid with significantly reduced hysteresis and recombination loss achieved in a single step. This new material displays an efficient electrically coupled microstructure: PCBM is homogeneously distributed throughout the film at perovskite grain boundaries. The PCBM passivates the key PbI3(-) antisite defects during the perovskite self-assembly, as revealed by theory and experiment. Photoluminescence transient spectroscopy proves that the PCBM phase promotes electron extraction. We showcase this mixed material in planar solar cells that feature low hysteresis and enhanced photovoltage. Using conductive AFM studies, we reveal the memristive properties of perovskite films. We close by positing that PCBM, by tying up both halide-rich antisites and unincorporated halides, reduces electric field-induced anion migration that may give rise to hysteresis and unstable diode behaviour.
CitationXu J, Buin A, Ip AH, Li W, Voznyy O, et al. (2015) Perovskite–fullerene hybrid materials suppress hysteresis in planar diodes. Nat Comms 6: 7081. Available: http://dx.doi.org/10.1038/ncomms8081.
SponsorsThis publication is based in part on work supported by Award KUS-11-009-21, made by 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 (NSERC) of Canada. Computations were performed on the GPC supercomputer at the SciNet HPC Consortium. SciNet is funded by: the Canada Foundation for Innovation under the auspices of Compute Canada; the Government of Ontario; Ontario Research Fund-Research Excellence; and the University of Toronto. We thank Peter Brodersen from Surface Interface Ontario for SIMS measurements. A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. L.N.Q. and D.H.K. acknowledge the financial support by National Research Foundation of Korea Grant funded by the Korean Government (2014R1A2A1A09005656). We thank Pengfei Li from the Department of Chemistry at the University of Toronto for help with time-of-flight mass spectrometry measurements.
PubMed Central IDPMC4432582
CollectionsPublications Acknowledging KAUST Support
Except where otherwise noted, this item's license is described as This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
- It Takes Two to Tango-Double-Layer Selective Contacts in Perovskite Solar Cells for Improved Device Performance and Reduced Hysteresis.
- Authors: Kegelmann L, Wolff CM, Awino C, Lang F, Unger EL, Korte L, Dittrich T, Neher D, Rech B, Albrecht S
- Issue date: 2017 May 24
- Engineering of Electron Extraction and Defect Passivation via Anion-Doped Conductive Fullerene Derivatives as Interlayers for Efficient Invert Perovskite Solar Cells.
- Authors: Zheng T, Fan L, Zhou H, Zhao Y, Jin B, Peng R
- Issue date: 2020 Jun 3
- Incorporating an Inert Polymer into the Interlayer Passivates Surface Defects in Methylammonium Lead Halide Perovskite Solar Cells.
- Authors: Bi S, Zhang X, Qin L, Wang R, Zhou J, Leng X, Qiu X, Zhang Y, Zhou H, Tang Z
- Issue date: 2017 Oct 17
- High Current Density and Low Hysteresis Effect of Planar Perovskite Solar Cells via PCBM-doping and Interfacial Improvement.
- Authors: Jiang H, Jiang G, Xing W, Xiong W, Zhang X, Wang B, Zhang H, Zheng Y
- Issue date: 2018 Sep 5
- Large Perovskite Grain Growth in Low-Temperature Solution-Processed Planar p-i-n Solar Cells by Sodium Addition.
- Authors: Bag S, Durstock MF
- Issue date: 2016 Mar 2