ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Probing Wavelength-Dependent Ion Diffusion in MAPbX3 Perovskites Using Muon Spin Rotation
Abstract: Hybrid organic-inorganic lead halide perovskites, such as MAPbX3 (X = I, Br, Cl), continue to attract significant attention for photovoltaic applications due to their exceptional optoelectronic performance. However, their practical use is limited by long-term stability issues, predominantly linked to photoinduced ion migration. In our recent ?SR investigation (K. Papadopoulos et al., Adv. Phys. Res., 3, 202300120 (2024)), we explored the ion dynamics of MAPbBr3 and MAPbCl3 single crystals under white-light illumination and dark conditions. The study demonstrated substantial effects of illumination on methylammonium (MA+) molecular fluctuations and halide ion diffusion. Nevertheless, the specific impact of photon energy on ion dynamics remains unclear. To address this open question, we propose a targeted follow-up study utilizing blue-light illumination (~450 nm), which possesses higher photon energy compared to white light. By employing wavelength-specific illumination combined with muSR, this experiment aims to elucidate the mechanisms governing ion diffusion processes, potentially revealing distinct ion activation pathways and enabling improved strategies for enhancing the stability of perovskite-based optoelectronic devices.
Principal Investigator: Ms Linn Lovisa Jansson
Experimenter: Dr Izumi Umegaki
Experimenter: Dr Kazuki Ohishi
Experimenter: Dr Jun Sugiyama
Local Contact: Dr Koji Yokoyama
Experimenter: Professor Martin Mansson
Experimenter: Professor Yasmine Sassa
Experimenter: Dr Stephen Cottrell
Experimenter: Mrs Svea Lilly Margarete Schlag
Experimenter: Dr Chengyu Jiang
Experimenter: Dr Elisabetta Nocerino
DOI: 10.5286/ISIS.E.RB2520590
ISIS Experiment Number: RB2520590
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2520590-1 | EMU | 27 March 2029 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Ms Linn Lovisa Jansson et al; (2026): Probing Wavelength-Dependent Ion Diffusion in MAPbX3 Perovskites Using Muon Spin Rotation, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520590
Data is released under the CC-BY-4.0 license.
