This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1002/pssa.201532500 in citations.
Lattice dynamics and thermoelectric properties of nanocrystalline silicon-germanium alloys
Lattice dynamics and thermoelectric properties of nanocrystalline silicon-germanium alloys
The lattice dynamics and thermoelectric properties of sintered phosphorus-doped nanostructured silicon–germanium alloys obtained by gas-phase synthesis were studied. Measurements of the density of phonon states by inelastic neutron scattering were combined with measurements of the elastic constants...
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Personal Name(s): | Claudio, Tania |
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Stein, Niklas / Petermann, Nils / Stroppa, Daniel G. / Koza, Michael Marek / Wiggers, Hartmut / Klobes, Benedikt / Schierning, Gabi / Hermann, Raphael (Corresponding author) | |
Contributing Institute: |
Streumethoden; JCNS-2 JARA-FIT; JARA-FIT Streumethoden; PGI-4 |
Published in: | Physica status solidi / A, 213 (2016) 3, S. 515–523 |
Imprint: |
Weinheim
Wiley-VCH
2016
|
DOI: |
10.1002/pssa.201532500 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) Materials and Processes for Energy and Transport Technologies Quantum Condensed Matter: Magnetism, Superconductivity Controlling Collective States Controlling Collective States |
Publikationsportal JuSER |
The lattice dynamics and thermoelectric properties of sintered phosphorus-doped nanostructured silicon–germanium alloys obtained by gas-phase synthesis were studied. Measurements of the density of phonon states by inelastic neutron scattering were combined with measurements of the elastic constants and the low-temperature heat capacity. A strong influence of nanostructuring and alloying on the lattice dynamics was observed. The thermoelectric transport properties of samples with different doping as well as samples sintered at different temperature were characterized between room temperature and inline imageC. A peak figure of merit inline image at inline imageC is observed and is comparatively insensitive to the aforementioned parameter variations. |