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.
?SR Investigation of Charge Dynamics in Hybrid Halide Perovskites
Abstract: Hybrid halide perovskites, such as FAPbI? and Cs?.?FA?.?PbI?.?Br?.?, have garnered attention for their remarkable optoelectronic properties, including high charge carrier mobility, favourable bandgaps, and long diffusion lengths, making them ideal candidates for solar cells. However, a deeper understanding of charge dynamics, particularly related to defects and charge trapping, is still required. Muon Spin Relaxation (?SR) is a powerful tool for probing local electronic environments, offering insights into charge trapping centres, defect states, and the local electric fields influencing charge carrier dynamics. This study aims to use ?SR to investigate charge dynamics in FAPbI?, Cs?.?FAPbI?, FAPbI?.?Br?.?, and Cs?.?FA?.?PbI?.?Br?.?. The objectives are to detect muonium formation, identify charge trapping centres, and study the temperature-dependent behaviour of carrier dynamics from 10 K to 300 K. By exploring these materials using weak transverse field (TF) and longitudinal field (LF) ?SR; we will probe how charge carriers interact with the local lattice and defects, especially at temperatures relevant to device operation. We request 3 days of beam time on the EMU or HiFi spectrometers to perform comprehensive ?SR measurements on four perovskite samples. This study will provide critical information on defect-related charge carrier dynamics, improving our understanding of how to enhance efficiency and stability in perovskite-based solar cells.
Principal Investigator: Dr Jhuma Sannigrahi
Experimenter: Dr Rupak Banerjee
Local Contact: Dr Koji Yokoyama
Experimenter: Dr Devashi Adroja
DOI: 10.5286/ISIS.E.RB2510627
ISIS Experiment Number: RB2510627
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510627-1 | EMU | 06 July 2028 | 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:
Dr Jhuma Sannigrahi et al; (2025): ?SR Investigation of Charge Dynamics in Hybrid Halide Perovskites, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510627
Data is released under the CC-BY-4.0 license.
