ISIS Neutron and Muon Source Data Journal

Lattice dynamical properties and Cu diffusion in Cu3BiS3 compound

Abstract: Increase energy efficiency and therefore contribute to addressing the worldwide energy problem. There is an urgent need for thermoelectric materials containing sustainable and abundant elements. Novel copper sulfides have attracted considerable interest for thermoelectric applications in terms of earth-abundant, cost-effective along with promising thermoelectric performance. Recently, our synthetic Cu3BiS3 with a simple crystal structure has displayed exceptionally ultra-low lattice thermal conductivity around 0.43-0.32 Wm-1k-1 from 300 to 575 K, which is the lowest reported value among copper sulfides. In this proposal, we propose to investigate the temperature evolution of anharmonic low-energy phonon modes and Cu diffusion over a temperature range of 10-450K. The results of our analysis will provide a deep insight into lattice dynamic properties and Cu diffusion for understanding its ultra-low lattice thermal conductivity.

Local Contact: Dr David Voneshen
Experimenter: Dr Paz Vaqueiro-Rodriguez
Experimenter: Dr Emmanuel Guilmeau
Experimenter: Mr Krishnendu Maji
Experimenter: Dr Xingchen Shen

DOI: 10.5286/ISIS.E.RB2310270

ISIS Experiment Number: RB2310270

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 David Voneshen et al; (2023): Lattice dynamical properties and Cu diffusion in Cu3BiS3 compound, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310270

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