Te-Doped Cu2Se nanoplates with a high average thermoelectric figure of merit
Article
Article Title | Te-Doped Cu2Se nanoplates with a high average thermoelectric figure of merit |
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ERA Journal ID | 201058 |
Article Category | Article |
Authors | Yang, Lei (Author), Chen, Zhi-Gang (Author), Han, Guang (Author), Hong, Min (Author), Huang, Liqing (Author) and Zou, Jin (Author) |
Journal Title | Journal of Materials Chemistry A |
Journal Citation | 4 (23), pp. 9213-9219 |
Number of Pages | 7 |
Year | 2016 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2050-7488 |
2050-7496 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c6ta02998a |
Web Address (URL) | http://pubs.rsc.org/en/Content/ArticleLanding/2016/TA/C6TA02998A#!divAbstract |
Abstract | Understanding the impact of dopants can direct the design of high-performance thermoelectric nanomaterials. In this study, we use Te as a dopant to modify Cu2Se nanoplates. It has been found that Te can be uniformly doped and distributed in the synthesized products to form Cu2Se1-xTex nanoplates with controlled Te content. Also, a phase transition from the original β-phase Cu2Se nanoplates to α-phase Cu2Se1-xTex nanoplates was observed with increasing Te doping level. From the thermoelectric evaluation of the sintered pellets of Cu2Se1-xTex nanoplates, it was found that Te can effectively modify their thermoelectric properties, especially their electrical transport properties. Finally, a high average figure-of-merit value of ∼1.2 in the temperature range from 400 K to 850 K was observed for the Cu2Se0.98Te0.02 sample. |
Keywords | alpha phase; beta-phase; electrical transport properties; figure of merits; sintered pellets; temperature range; thermoelectric figure of merit; thermoelectric properties; thermoelectric energy; electricity, basic concepts and phenomena; nanotechnology; solid state physics |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4150/te-doped-cu2se-nanoplates-with-a-high-average-thermoelectric-figure-of-merit
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