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.
Exploring the origin of low thermal conductivity in thermoelectric Cu2ZnGeSe4
Abstract: Diamond-like quaternary chalcogenides, including Cu2ZnGeSe4, are attracting considerable interest for their potential as absorbers for solar cells and for thermoelectric energy recovery. Cu2ZnGeSe4 exhibits an electronic transition at 473 K. Analysis of variable-temperature neutron diffraction data has revealed that an order-disorder transition, accompanied by the onset of copper ion mobility, occurs at this temperature. This transition results in a significant reduction in the lattice thermal conductivity of Cu2ZnGeSe4. Here, we seek to gain a better understanding of the effect of copper ionic mobility on the lattice thermal conductivity and the vibrational phonon modes of this material.
Experimenter: Dr Shriparna Mukherjee
Experimenter: Dr David Voneshen
Local Contact: Dr Duc Le
Experimenter: Dr Paz Vaqueiro-Rodriguez
Experimenter: Professor Anthony Powell
Experimenter: Dr Mahmoud Elgaml
DOI: 10.5286/ISIS.E.RB2310178
ISIS Experiment Number: RB2310178
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2310178-1 | MARI | 20 October 2026 | Download |
| 10.5286/ISIS.E.RB2310178-2 | MARI | 18 October 2026 | 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 Shriparna Mukherjee et al; (2023): Exploring the origin of low thermal conductivity in thermoelectric Cu2ZnGeSe4, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310178
Data is released under the CC-BY-4.0 license.
