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Ashby, Shane P., Thomas, Jason A., García-Cañadas, Jorge, Min, Gao, Corps, Jack, Powell, Anthony V., Xu, Hualong, Shen, Wei and Chao, Yimin 
ORCID: https://orcid.org/0000-0002-8488-2690
(2014)
Bridging silicon nanoparticles and thermoelectrics: phenylacetylene functionalization.
Faraday Discussions, 176.
pp. 349-361.
ISSN 1364-5498
Abstract
Silicon is a promising alternative to current thermoelectric materials (Bi2Te3). Silicon nanoparticle based materials show especially low thermal conductivities due to their high number of interfaces, which increases the observed phonon scattering. The major obstacle with these materials is maintaining high electrical conductivity. Surface functionalization with phenylacetylene shows an electrical conductivity of 18.1 S m−1 and Seebeck coefficient of 3228.8 μV K−1 as well as maintaining a thermal conductivity of 0.1 W K−1 m−1. This gives a ZT of 0.6 at 300 K which is significant for a bulk silicon based material and is similar to that of other thermoelectric materials such as Mg2Si, PbTe and SiGe alloys.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Chemistry (former - to 2024) Faculty of Science > School of Chemical Sciences and Pharmacy (former - to 2009) |
| UEA Research Groups: | Faculty of Science > Research Groups > Physical and Analytical Chemistry (former - to 2017) Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Energy Materials Laboratory |
| Depositing User: | Pure Connector |
| Date Deposited: | 08 Oct 2014 08:48 |
| Last Modified: | 25 Sep 2024 11:29 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/50238 |
| DOI: | 10.1039/C4FD00109E |
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