ISIS Neutron and Muon Source Data Journal

Probing the origin of low thermal conductivity in thermoelectric materials

Abstract: Thermoelectric materials are increasingly attracting attention due to their potential for use in devices for waste heat energy recovery. Bismuth copper oxychalcogenides have been recently identified as promising p-type thermoelectric materials. The origin of their promising performance lies in their extremely low thermal conductivity, which approaches values normally found in amorphous materials. We seek to exploit inelastic neutron scattering to determine the neutron-weighted phonon density of states, which will be compared with the phonon density of states determined by first-principle calculations. This results will enable us to elucidate the origin of the unusually low thermal conductivity. This experiment will complete a body of work on these materials carried out by a PhD student.

Principal Investigator: Dr Paz Vaqueiro-Rodriguez
Local Contact: Dr Tatiana Guidi
Experimenter: Professor Marco Fornari
Experimenter: Mr Son Luu
Experimenter: Dr Jesus Prado-Gonjal
Experimenter: Dr Ross Stewart
Experimenter: Professor Anthony Powell

DOI: 10.5286/ISIS.E.RB1520035

ISIS Experiment Number: RB1520035

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 Paz Vaqueiro-Rodriguez et al; (2015): Probing the origin of low thermal conductivity in thermoelectric materials, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520035

Data is released under the CC-BY-4.0 license.